79571780

素因数分解:

$2^2\times 5^1\times {\mathrm{449}}^1\times {\mathrm{8861}}^1$

素因数の和:9319

約数の個数: 24

約数和(自身を含む): 167491800

約数和(自身を除く): 87920020

約数列:

[1, 2, 4, 5, 10, 20, 449, 898, 1796, 2245, 4490, 8861, 8980, 17722, 35444, 44305, 88610, 177220, 3978589, 7957178, 15914356, 19892945, 39785890, 79571780]

約数ペア:

[(1, 79571780), (2, 39785890), (4, 19892945), (5, 15914356), (10, 7957178), (20, 3978589), (449, 177220), (898, 88610), (1796, 44305), (2245, 35444), (4490, 17722), (8861, 8980)]