39995960

素因数分解:

$2^3\times 5^1\times {\mathrm{307}}^1\times {\mathrm{3257}}^1$

素因数の和:3575

約数の個数: 32

約数和(自身を含む): 90311760

約数和(自身を除く): 50315800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 307, 614, 1228, 1535, 2456, 3070, 3257, 6140, 6514, 12280, 13028, 16285, 26056, 32570, 65140, 130280, 999899, 1999798, 3999596, 4999495, 7999192, 9998990, 19997980, 39995960]

約数ペア:

[(1, 39995960), (2, 19997980), (4, 9998990), (5, 7999192), (8, 4999495), (10, 3999596), (20, 1999798), (40, 999899), (307, 130280), (614, 65140), (1228, 32570), (1535, 26056), (2456, 16285), (3070, 13028), (3257, 12280), (6140, 6514)]