79985560

素因数分解:

$2^3\times 5^1\times {\mathrm{631}}^1\times {\mathrm{3169}}^1$

素因数の和:3811

約数の個数: 32

約数和(自身を含む): 180309600

約数和(自身を除く): 100324040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 631, 1262, 2524, 3155, 3169, 5048, 6310, 6338, 12620, 12676, 15845, 25240, 25352, 31690, 63380, 126760, 1999639, 3999278, 7998556, 9998195, 15997112, 19996390, 39992780, 79985560]

約数ペア:

[(1, 79985560), (2, 39992780), (4, 19996390), (5, 15997112), (8, 9998195), (10, 7998556), (20, 3999278), (40, 1999639), (631, 126760), (1262, 63380), (2524, 31690), (3155, 25352), (3169, 25240), (5048, 15845), (6310, 12676), (6338, 12620)]