31572280

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{11117}}^1$

素因数の和:11199

約数の個数: 32

約数和(自身を含む): 72044640

約数和(自身を除く): 40472360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 11117, 22234, 44468, 55585, 88936, 111170, 222340, 444680, 789307, 1578614, 3157228, 3946535, 6314456, 7893070, 15786140, 31572280]

約数ペア:

[(1, 31572280), (2, 15786140), (4, 7893070), (5, 6314456), (8, 3946535), (10, 3157228), (20, 1578614), (40, 789307), (71, 444680), (142, 222340), (284, 111170), (355, 88936), (568, 55585), (710, 44468), (1420, 22234), (2840, 11117)]