256216860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1$

素因数の和:173

約数の個数: 288

約数和(自身を含む): 884362752

約数和(自身を除く): 628145892

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 31, 34, 36, 37, 45, 51, 60, 62, 68, 73, 74, 85, 90, 93, 102, 111, 124, 146, 148, 153, 155, 170, 180, 185, 186, 204, 219, 222, 255, 279, 292, 306, 310, 333, 340, 365, 370, 372, 438, 444, 465, 510, 527, 555, 558, 612, 620, 629, 657, 666, 730, 740, 765, 876, 930, 1020, 1054, 1095, 1110, 1116, 1147, 1241, 1258, 1314, 1332, 1395, 1460, 1530, 1581, 1665, 1860, 1887, 2108, 2190, 2220, 2263, 2294, 2482, 2516, 2628, 2635, 2701, 2790, 3060, 3145, 3162, 3285, 3330, 3441, 3723, 3774, 4380, 4526, 4588, 4743, 4964, 5270, 5402, 5580, 5661, 5735, 6205, 6290, 6324, 6570, 6660, 6789, 6882, 7446, 7548, 7905, 8103, 9052, 9435, 9486, 10323, 10540, 10804, 11169, 11315, 11322, 11470, 12410, 12580, 13140, 13505, 13578, 13764, 14892, 15810, 16206, 17205, 18615, 18870, 18972, 19499, 20367, 20646, 22338, 22630, 22644, 22940, 23715, 24309, 24820, 27010, 27156, 28305, 31620, 32412, 33945, 34410, 37230, 37740, 38471, 38998, 40515, 40734, 41292, 44676, 45260, 45917, 47430, 48618, 51615, 54020, 55845, 56610, 58497, 67890, 68820, 74460, 76942, 77996, 81030, 81468, 83731, 91834, 94860, 97236, 97495, 101835, 103230, 111690, 113220, 115413, 116994, 121545, 135780, 137751, 153884, 162060, 167462, 175491, 183668, 192355, 194990, 203670, 206460, 223380, 229585, 230826, 233988, 243090, 251193, 275502, 292485, 334924, 346239, 350982, 384710, 389980, 407340, 413253, 418655, 459170, 461652, 486180, 502386, 551004, 577065, 584970, 688755, 692478, 701964, 753579, 769420, 826506, 837310, 877455, 918340, 1004772, 1154130, 1169940, 1255965, 1377510, 1384956, 1423427, 1507158, 1653012, 1674620, 1731195, 1754910, 2066265, 2308260, 2511930, 2755020, 2846854, 3014316, 3462390, 3509820, 3767895, 4132530, 4270281, 5023860, 5693708, 6924780, 7117135, 7535790, 8265060, 8540562, 12810843, 14234270, 15071580, 17081124, 21351405, 25621686, 28468540, 42702810, 51243372, 64054215, 85405620, 128108430, 256216860]

約数ペア:

[(1, 256216860), (2, 128108430), (3, 85405620), (4, 64054215), (5, 51243372), (6, 42702810), (9, 28468540), (10, 25621686), (12, 21351405), (15, 17081124), (17, 15071580), (18, 14234270), (20, 12810843), (30, 8540562), (31, 8265060), (34, 7535790), (36, 7117135), (37, 6924780), (45, 5693708), (51, 5023860), (60, 4270281), (62, 4132530), (68, 3767895), (73, 3509820), (74, 3462390), (85, 3014316), (90, 2846854), (93, 2755020), (102, 2511930), (111, 2308260), (124, 2066265), (146, 1754910), (148, 1731195), (153, 1674620), (155, 1653012), (170, 1507158), (180, 1423427), (185, 1384956), (186, 1377510), (204, 1255965), (219, 1169940), (222, 1154130), (255, 1004772), (279, 918340), (292, 877455), (306, 837310), (310, 826506), (333, 769420), (340, 753579), (365, 701964), (370, 692478), (372, 688755), (438, 584970), (444, 577065), (465, 551004), (510, 502386), (527, 486180), (555, 461652), (558, 459170), (612, 418655), (620, 413253), (629, 407340), (657, 389980), (666, 384710), (730, 350982), (740, 346239), (765, 334924), (876, 292485), (930, 275502), (1020, 251193), (1054, 243090), (1095, 233988), (1110, 230826), (1116, 229585), (1147, 223380), (1241, 206460), (1258, 203670), (1314, 194990), (1332, 192355), (1395, 183668), (1460, 175491), (1530, 167462), (1581, 162060), (1665, 153884), (1860, 137751), (1887, 135780), (2108, 121545), (2190, 116994), (2220, 115413), (2263, 113220), (2294, 111690), (2482, 103230), (2516, 101835), (2628, 97495), (2635, 97236), (2701, 94860), (2790, 91834), (3060, 83731), (3145, 81468), (3162, 81030), (3285, 77996), (3330, 76942), (3441, 74460), (3723, 68820), (3774, 67890), (4380, 58497), (4526, 56610), (4588, 55845), (4743, 54020), (4964, 51615), (5270, 48618), (5402, 47430), (5580, 45917), (5661, 45260), (5735, 44676), (6205, 41292), (6290, 40734), (6324, 40515), (6570, 38998), (6660, 38471), (6789, 37740), (6882, 37230), (7446, 34410), (7548, 33945), (7905, 32412), (8103, 31620), (9052, 28305), (9435, 27156), (9486, 27010), (10323, 24820), (10540, 24309), (10804, 23715), (11169, 22940), (11315, 22644), (11322, 22630), (11470, 22338), (12410, 20646), (12580, 20367), (13140, 19499), (13505, 18972), (13578, 18870), (13764, 18615), (14892, 17205), (15810, 16206)]