20404584160

素因数分解:

$2^5\times 5^1\times {\mathrm{127528651}}^1$

素因数の和:127528666

約数の個数: 24

約数和(自身を含む): 48205830456

約数和(自身を除く): 27801246296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 127528651, 255057302, 510114604, 637643255, 1020229208, 1275286510, 2040458416, 2550573020, 4080916832, 5101146040, 10202292080, 20404584160]

約数ペア:

[(1, 20404584160), (2, 10202292080), (4, 5101146040), (5, 4080916832), (8, 2550573020), (10, 2040458416), (16, 1275286510), (20, 1020229208), (32, 637643255), (40, 510114604), (80, 255057302), (160, 127528651)]