256459280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:158

約数の個数: 320

約数和(自身を含む): 822804480

約数和(自身を除く): 566345200

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 17, 20, 22, 28, 31, 34, 35, 40, 44, 55, 56, 62, 68, 70, 77, 79, 80, 85, 88, 110, 112, 119, 124, 136, 140, 154, 155, 158, 170, 176, 187, 217, 220, 238, 248, 272, 280, 308, 310, 316, 340, 341, 374, 385, 395, 434, 440, 476, 496, 527, 553, 560, 595, 616, 620, 632, 680, 682, 748, 770, 790, 868, 869, 880, 935, 952, 1054, 1085, 1106, 1190, 1232, 1240, 1264, 1309, 1343, 1360, 1364, 1496, 1540, 1580, 1705, 1736, 1738, 1870, 1904, 2108, 2170, 2212, 2380, 2387, 2449, 2480, 2618, 2635, 2686, 2728, 2765, 2992, 3080, 3160, 3410, 3472, 3476, 3689, 3740, 4216, 4340, 4345, 4424, 4760, 4774, 4898, 5236, 5270, 5372, 5456, 5530, 5797, 6083, 6160, 6320, 6545, 6715, 6820, 6952, 7378, 7480, 8432, 8680, 8690, 8848, 9401, 9520, 9548, 9796, 10472, 10540, 10744, 11060, 11594, 11935, 12166, 12245, 13090, 13430, 13640, 13904, 14756, 14773, 14960, 17143, 17360, 17380, 18445, 18802, 19096, 19592, 20944, 21080, 21488, 22120, 23188, 23870, 24332, 24490, 26180, 26860, 26939, 27280, 28985, 29512, 29546, 30415, 34286, 34760, 36890, 37604, 38192, 39184, 40579, 41633, 42160, 44240, 46376, 47005, 47740, 48664, 48980, 52360, 53720, 53878, 57970, 59024, 59092, 60830, 68572, 69520, 73780, 73865, 75208, 81158, 83266, 85715, 92752, 94010, 95480, 97328, 97960, 103411, 104720, 107440, 107756, 115940, 118184, 121660, 134695, 137144, 147560, 147730, 150416, 162316, 166532, 171430, 188020, 188573, 190960, 195920, 202895, 206822, 208165, 215512, 231880, 236368, 243320, 269390, 274288, 291431, 295120, 295460, 324632, 333064, 342860, 376040, 377146, 405790, 413644, 416330, 431024, 457963, 463760, 486640, 517055, 538780, 582862, 590920, 649264, 666128, 685720, 752080, 754292, 811580, 827288, 832660, 915926, 942865, 1034110, 1077560, 1165724, 1181840, 1371440, 1457155, 1508584, 1623160, 1654576, 1665320, 1831852, 1885730, 2068220, 2155120, 2289815, 2331448, 2914310, 3017168, 3205741, 3246320, 3330640, 3663704, 3771460, 4136440, 4579630, 4662896, 5828620, 6411482, 7327408, 7542920, 8272880, 9159260, 11657240, 12822964, 15085840, 16028705, 18318520, 23314480, 25645928, 32057410, 36637040, 51291856, 64114820, 128229640, 256459280]

約数ペア:

[(1, 256459280), (2, 128229640), (4, 64114820), (5, 51291856), (7, 36637040), (8, 32057410), (10, 25645928), (11, 23314480), (14, 18318520), (16, 16028705), (17, 15085840), (20, 12822964), (22, 11657240), (28, 9159260), (31, 8272880), (34, 7542920), (35, 7327408), (40, 6411482), (44, 5828620), (55, 4662896), (56, 4579630), (62, 4136440), (68, 3771460), (70, 3663704), (77, 3330640), (79, 3246320), (80, 3205741), (85, 3017168), (88, 2914310), (110, 2331448), (112, 2289815), (119, 2155120), (124, 2068220), (136, 1885730), (140, 1831852), (154, 1665320), (155, 1654576), (158, 1623160), (170, 1508584), (176, 1457155), (187, 1371440), (217, 1181840), (220, 1165724), (238, 1077560), (248, 1034110), (272, 942865), (280, 915926), (308, 832660), (310, 827288), (316, 811580), (340, 754292), (341, 752080), (374, 685720), (385, 666128), (395, 649264), (434, 590920), (440, 582862), (476, 538780), (496, 517055), (527, 486640), (553, 463760), (560, 457963), (595, 431024), (616, 416330), (620, 413644), (632, 405790), (680, 377146), (682, 376040), (748, 342860), (770, 333064), (790, 324632), (868, 295460), (869, 295120), (880, 291431), (935, 274288), (952, 269390), (1054, 243320), (1085, 236368), (1106, 231880), (1190, 215512), (1232, 208165), (1240, 206822), (1264, 202895), (1309, 195920), (1343, 190960), (1360, 188573), (1364, 188020), (1496, 171430), (1540, 166532), (1580, 162316), (1705, 150416), (1736, 147730), (1738, 147560), (1870, 137144), (1904, 134695), (2108, 121660), (2170, 118184), (2212, 115940), (2380, 107756), (2387, 107440), (2449, 104720), (2480, 103411), (2618, 97960), (2635, 97328), (2686, 95480), (2728, 94010), (2765, 92752), (2992, 85715), (3080, 83266), (3160, 81158), (3410, 75208), (3472, 73865), (3476, 73780), (3689, 69520), (3740, 68572), (4216, 60830), (4340, 59092), (4345, 59024), (4424, 57970), (4760, 53878), (4774, 53720), (4898, 52360), (5236, 48980), (5270, 48664), (5372, 47740), (5456, 47005), (5530, 46376), (5797, 44240), (6083, 42160), (6160, 41633), (6320, 40579), (6545, 39184), (6715, 38192), (6820, 37604), (6952, 36890), (7378, 34760), (7480, 34286), (8432, 30415), (8680, 29546), (8690, 29512), (8848, 28985), (9401, 27280), (9520, 26939), (9548, 26860), (9796, 26180), (10472, 24490), (10540, 24332), (10744, 23870), (11060, 23188), (11594, 22120), (11935, 21488), (12166, 21080), (12245, 20944), (13090, 19592), (13430, 19096), (13640, 18802), (13904, 18445), (14756, 17380), (14773, 17360), (14960, 17143)]