12617620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{433}}^1$

素因数の和:520

約数の個数: 48

約数和(自身を含む): 27998208

約数和(自身を除く): 15380588

約数列:

[1, 2, 4, 5, 10, 20, 31, 47, 62, 94, 124, 155, 188, 235, 310, 433, 470, 620, 866, 940, 1457, 1732, 2165, 2914, 4330, 5828, 7285, 8660, 13423, 14570, 20351, 26846, 29140, 40702, 53692, 67115, 81404, 101755, 134230, 203510, 268460, 407020, 630881, 1261762, 2523524, 3154405, 6308810, 12617620]

約数ペア:

[(1, 12617620), (2, 6308810), (4, 3154405), (5, 2523524), (10, 1261762), (20, 630881), (31, 407020), (47, 268460), (62, 203510), (94, 134230), (124, 101755), (155, 81404), (188, 67115), (235, 53692), (310, 40702), (433, 29140), (470, 26846), (620, 20351), (866, 14570), (940, 13423), (1457, 8660), (1732, 7285), (2165, 5828), (2914, 4330)]