256421880

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{293}}^1$

素因数の和:351

約数の個数: 384

約数和(自身を含む): 1040195520

約数和(自身を除く): 783773640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 15, 17, 18, 20, 22, 24, 26, 30, 33, 34, 36, 39, 40, 44, 45, 51, 52, 55, 60, 65, 66, 68, 72, 78, 85, 88, 90, 99, 102, 104, 110, 117, 120, 130, 132, 136, 143, 153, 156, 165, 170, 180, 187, 195, 198, 204, 220, 221, 234, 255, 260, 264, 286, 293, 306, 312, 330, 340, 360, 374, 390, 396, 408, 429, 440, 442, 468, 495, 510, 520, 561, 572, 585, 586, 612, 660, 663, 680, 715, 748, 765, 780, 792, 858, 879, 884, 935, 936, 990, 1020, 1105, 1122, 1144, 1170, 1172, 1224, 1287, 1320, 1326, 1430, 1465, 1496, 1530, 1560, 1683, 1716, 1758, 1768, 1870, 1980, 1989, 2040, 2145, 2210, 2244, 2340, 2344, 2431, 2574, 2637, 2652, 2805, 2860, 2930, 3060, 3223, 3315, 3366, 3432, 3516, 3740, 3809, 3960, 3978, 4290, 4395, 4420, 4488, 4680, 4862, 4981, 5148, 5274, 5304, 5610, 5720, 5860, 6120, 6435, 6446, 6630, 6732, 7032, 7293, 7480, 7618, 7956, 8415, 8580, 8790, 8840, 9669, 9724, 9945, 9962, 10296, 10548, 11220, 11427, 11720, 12155, 12870, 12892, 13185, 13260, 13464, 14586, 14943, 15236, 15912, 16115, 16830, 17160, 17580, 19045, 19338, 19448, 19890, 19924, 21096, 21879, 22440, 22854, 24310, 24905, 25740, 25784, 26370, 26520, 29007, 29172, 29886, 30472, 32230, 33660, 34281, 35160, 36465, 38090, 38676, 39780, 39848, 41899, 43758, 44829, 45708, 48345, 48620, 49810, 51480, 52740, 54791, 57135, 58014, 58344, 59772, 64460, 64753, 67320, 68562, 72930, 74715, 76180, 77352, 79560, 83798, 87516, 89658, 91416, 96690, 97240, 99620, 105480, 109395, 109582, 114270, 116028, 119544, 125697, 128920, 129506, 137124, 145035, 145860, 149430, 152360, 164373, 167596, 171405, 175032, 179316, 193380, 194259, 199240, 209495, 218790, 219164, 224145, 228540, 232056, 251394, 259012, 273955, 274248, 290070, 291720, 298860, 323765, 328746, 335192, 342810, 358632, 377091, 386760, 388518, 418990, 437580, 438328, 448290, 457080, 493119, 502788, 518024, 547910, 580140, 582777, 597720, 628485, 647530, 657492, 685620, 712283, 754182, 777036, 821865, 837980, 875160, 896580, 971295, 986238, 1005576, 1095820, 1160280, 1165554, 1256970, 1295060, 1314984, 1371240, 1424566, 1508364, 1554072, 1643730, 1675960, 1793160, 1885455, 1942590, 1972476, 2136849, 2191640, 2331108, 2465595, 2513940, 2590120, 2849132, 2913885, 3016728, 3287460, 3561415, 3770910, 3885180, 3944952, 4273698, 4662216, 4931190, 5027880, 5698264, 5827770, 6410547, 6574920, 7122830, 7541820, 7770360, 8547396, 9862380, 10684245, 11655540, 12821094, 14245660, 15083640, 17094792, 19724760, 21368490, 23311080, 25642188, 28491320, 32052735, 42736980, 51284376, 64105470, 85473960, 128210940, 256421880]

約数ペア:

[(1, 256421880), (2, 128210940), (3, 85473960), (4, 64105470), (5, 51284376), (6, 42736980), (8, 32052735), (9, 28491320), (10, 25642188), (11, 23311080), (12, 21368490), (13, 19724760), (15, 17094792), (17, 15083640), (18, 14245660), (20, 12821094), (22, 11655540), (24, 10684245), (26, 9862380), (30, 8547396), (33, 7770360), (34, 7541820), (36, 7122830), (39, 6574920), (40, 6410547), (44, 5827770), (45, 5698264), (51, 5027880), (52, 4931190), (55, 4662216), (60, 4273698), (65, 3944952), (66, 3885180), (68, 3770910), (72, 3561415), (78, 3287460), (85, 3016728), (88, 2913885), (90, 2849132), (99, 2590120), (102, 2513940), (104, 2465595), (110, 2331108), (117, 2191640), (120, 2136849), (130, 1972476), (132, 1942590), (136, 1885455), (143, 1793160), (153, 1675960), (156, 1643730), (165, 1554072), (170, 1508364), (180, 1424566), (187, 1371240), (195, 1314984), (198, 1295060), (204, 1256970), (220, 1165554), (221, 1160280), (234, 1095820), (255, 1005576), (260, 986238), (264, 971295), (286, 896580), (293, 875160), (306, 837980), (312, 821865), (330, 777036), (340, 754182), (360, 712283), (374, 685620), (390, 657492), (396, 647530), (408, 628485), (429, 597720), (440, 582777), (442, 580140), (468, 547910), (495, 518024), (510, 502788), (520, 493119), (561, 457080), (572, 448290), (585, 438328), (586, 437580), (612, 418990), (660, 388518), (663, 386760), (680, 377091), (715, 358632), (748, 342810), (765, 335192), (780, 328746), (792, 323765), (858, 298860), (879, 291720), (884, 290070), (935, 274248), (936, 273955), (990, 259012), (1020, 251394), (1105, 232056), (1122, 228540), (1144, 224145), (1170, 219164), (1172, 218790), (1224, 209495), (1287, 199240), (1320, 194259), (1326, 193380), (1430, 179316), (1465, 175032), (1496, 171405), (1530, 167596), (1560, 164373), (1683, 152360), (1716, 149430), (1758, 145860), (1768, 145035), (1870, 137124), (1980, 129506), (1989, 128920), (2040, 125697), (2145, 119544), (2210, 116028), (2244, 114270), (2340, 109582), (2344, 109395), (2431, 105480), (2574, 99620), (2637, 97240), (2652, 96690), (2805, 91416), (2860, 89658), (2930, 87516), (3060, 83798), (3223, 79560), (3315, 77352), (3366, 76180), (3432, 74715), (3516, 72930), (3740, 68562), (3809, 67320), (3960, 64753), (3978, 64460), (4290, 59772), (4395, 58344), (4420, 58014), (4488, 57135), (4680, 54791), (4862, 52740), (4981, 51480), (5148, 49810), (5274, 48620), (5304, 48345), (5610, 45708), (5720, 44829), (5860, 43758), (6120, 41899), (6435, 39848), (6446, 39780), (6630, 38676), (6732, 38090), (7032, 36465), (7293, 35160), (7480, 34281), (7618, 33660), (7956, 32230), (8415, 30472), (8580, 29886), (8790, 29172), (8840, 29007), (9669, 26520), (9724, 26370), (9945, 25784), (9962, 25740), (10296, 24905), (10548, 24310), (11220, 22854), (11427, 22440), (11720, 21879), (12155, 21096), (12870, 19924), (12892, 19890), (13185, 19448), (13260, 19338), (13464, 19045), (14586, 17580), (14943, 17160), (15236, 16830), (15912, 16115)]