31583420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{421}}^1$

素因数の和:483

約数の個数: 72

約数和(自身を含む): 75433344

約数和(自身を除く): 43849924

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 121, 124, 155, 220, 242, 310, 341, 421, 484, 605, 620, 682, 842, 1210, 1364, 1684, 1705, 2105, 2420, 3410, 3751, 4210, 4631, 6820, 7502, 8420, 9262, 13051, 15004, 18524, 18755, 23155, 26102, 37510, 46310, 50941, 52204, 65255, 75020, 92620, 101882, 130510, 143561, 203764, 254705, 261020, 287122, 509410, 574244, 717805, 1018820, 1435610, 1579171, 2871220, 3158342, 6316684, 7895855, 15791710, 31583420]

約数ペア:

[(1, 31583420), (2, 15791710), (4, 7895855), (5, 6316684), (10, 3158342), (11, 2871220), (20, 1579171), (22, 1435610), (31, 1018820), (44, 717805), (55, 574244), (62, 509410), (110, 287122), (121, 261020), (124, 254705), (155, 203764), (220, 143561), (242, 130510), (310, 101882), (341, 92620), (421, 75020), (484, 65255), (605, 52204), (620, 50941), (682, 46310), (842, 37510), (1210, 26102), (1364, 23155), (1684, 18755), (1705, 18524), (2105, 15004), (2420, 13051), (3410, 9262), (3751, 8420), (4210, 7502), (4631, 6820)]