31383420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:275

約数の個数: 96

約数和(自身を含む): 91445760

約数和(自身を除く): 60062340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 53, 60, 71, 106, 139, 142, 159, 212, 213, 265, 278, 284, 318, 355, 417, 426, 530, 556, 636, 695, 710, 795, 834, 852, 1060, 1065, 1390, 1420, 1590, 1668, 2085, 2130, 2780, 3180, 3763, 4170, 4260, 7367, 7526, 8340, 9869, 11289, 14734, 15052, 18815, 19738, 22101, 22578, 29468, 29607, 36835, 37630, 39476, 44202, 45156, 49345, 56445, 59214, 73670, 75260, 88404, 98690, 110505, 112890, 118428, 147340, 148035, 197380, 221010, 225780, 296070, 442020, 523057, 592140, 1046114, 1569171, 2092228, 2615285, 3138342, 5230570, 6276684, 7845855, 10461140, 15691710, 31383420]

約数ペア:

[(1, 31383420), (2, 15691710), (3, 10461140), (4, 7845855), (5, 6276684), (6, 5230570), (10, 3138342), (12, 2615285), (15, 2092228), (20, 1569171), (30, 1046114), (53, 592140), (60, 523057), (71, 442020), (106, 296070), (139, 225780), (142, 221010), (159, 197380), (212, 148035), (213, 147340), (265, 118428), (278, 112890), (284, 110505), (318, 98690), (355, 88404), (417, 75260), (426, 73670), (530, 59214), (556, 56445), (636, 49345), (695, 45156), (710, 44202), (795, 39476), (834, 37630), (852, 36835), (1060, 29607), (1065, 29468), (1390, 22578), (1420, 22101), (1590, 19738), (1668, 18815), (2085, 15052), (2130, 14734), (2780, 11289), (3180, 9869), (3763, 8340), (4170, 7526), (4260, 7367)]