65666840

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{521}}^1$

素因数の和:692

約数の個数: 64

約数和(自身を含む): 155597760

約数和(自身を除く): 89930920

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 137, 184, 230, 274, 460, 521, 548, 685, 920, 1042, 1096, 1370, 2084, 2605, 2740, 3151, 4168, 5210, 5480, 6302, 10420, 11983, 12604, 15755, 20840, 23966, 25208, 31510, 47932, 59915, 63020, 71377, 95864, 119830, 126040, 142754, 239660, 285508, 356885, 479320, 571016, 713770, 1427540, 1641671, 2855080, 3283342, 6566684, 8208355, 13133368, 16416710, 32833420, 65666840]

約数ペア:

[(1, 65666840), (2, 32833420), (4, 16416710), (5, 13133368), (8, 8208355), (10, 6566684), (20, 3283342), (23, 2855080), (40, 1641671), (46, 1427540), (92, 713770), (115, 571016), (137, 479320), (184, 356885), (230, 285508), (274, 239660), (460, 142754), (521, 126040), (548, 119830), (685, 95864), (920, 71377), (1042, 63020), (1096, 59915), (1370, 47932), (2084, 31510), (2605, 25208), (2740, 23966), (3151, 20840), (4168, 15755), (5210, 12604), (5480, 11983), (6302, 10420)]