18387340

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{631}}^1$

素因数の和:718

約数の個数: 48

約数和(自身を含む): 40771584

約数和(自身を除く): 22384244

約数列:

[1, 2, 4, 5, 10, 20, 31, 47, 62, 94, 124, 155, 188, 235, 310, 470, 620, 631, 940, 1262, 1457, 2524, 2914, 3155, 5828, 6310, 7285, 12620, 14570, 19561, 29140, 29657, 39122, 59314, 78244, 97805, 118628, 148285, 195610, 296570, 391220, 593140, 919367, 1838734, 3677468, 4596835, 9193670, 18387340]

約数ペア:

[(1, 18387340), (2, 9193670), (4, 4596835), (5, 3677468), (10, 1838734), (20, 919367), (31, 593140), (47, 391220), (62, 296570), (94, 195610), (124, 148285), (155, 118628), (188, 97805), (235, 78244), (310, 59314), (470, 39122), (620, 29657), (631, 29140), (940, 19561), (1262, 14570), (1457, 12620), (2524, 7285), (2914, 6310), (3155, 5828)]