261755568

素因数分解:

$2^4\times 3^2\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{307}}^1$

素因数の和:543

約数の個数: 120

約数和(自身を含む): 762617856

約数和(自身を除く): 500862288

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 31, 36, 48, 62, 72, 93, 124, 144, 186, 191, 248, 279, 307, 372, 382, 496, 558, 573, 614, 744, 764, 921, 1116, 1146, 1228, 1488, 1528, 1719, 1842, 2232, 2292, 2456, 2763, 3056, 3438, 3684, 4464, 4584, 4912, 5526, 5921, 6876, 7368, 9168, 9517, 11052, 11842, 13752, 14736, 17763, 19034, 22104, 23684, 27504, 28551, 35526, 38068, 44208, 47368, 53289, 57102, 58637, 71052, 76136, 85653, 94736, 106578, 114204, 117274, 142104, 152272, 171306, 175911, 213156, 228408, 234548, 284208, 342612, 351822, 426312, 456816, 469096, 527733, 685224, 703644, 852624, 938192, 1055466, 1370448, 1407288, 1817747, 2110932, 2814576, 3635494, 4221864, 5453241, 7270988, 8443728, 10906482, 14541976, 16359723, 21812964, 29083952, 32719446, 43625928, 65438892, 87251856, 130877784, 261755568]

約数ペア:

[(1, 261755568), (2, 130877784), (3, 87251856), (4, 65438892), (6, 43625928), (8, 32719446), (9, 29083952), (12, 21812964), (16, 16359723), (18, 14541976), (24, 10906482), (31, 8443728), (36, 7270988), (48, 5453241), (62, 4221864), (72, 3635494), (93, 2814576), (124, 2110932), (144, 1817747), (186, 1407288), (191, 1370448), (248, 1055466), (279, 938192), (307, 852624), (372, 703644), (382, 685224), (496, 527733), (558, 469096), (573, 456816), (614, 426312), (744, 351822), (764, 342612), (921, 284208), (1116, 234548), (1146, 228408), (1228, 213156), (1488, 175911), (1528, 171306), (1719, 152272), (1842, 142104), (2232, 117274), (2292, 114204), (2456, 106578), (2763, 94736), (3056, 85653), (3438, 76136), (3684, 71052), (4464, 58637), (4584, 57102), (4912, 53289), (5526, 47368), (5921, 44208), (6876, 38068), (7368, 35526), (9168, 28551), (9517, 27504), (11052, 23684), (11842, 22104), (13752, 19034), (14736, 17763)]