20915350

素因数分解:

$2^1\times 5^2\times {\mathrm{557}}^1\times {\mathrm{751}}^1$

素因数の和:1320

約数の個数: 24

約数和(自身を含む): 39024288

約数和(自身を除く): 18108938

約数列:

[1, 2, 5, 10, 25, 50, 557, 751, 1114, 1502, 2785, 3755, 5570, 7510, 13925, 18775, 27850, 37550, 418307, 836614, 2091535, 4183070, 10457675, 20915350]

約数ペア:

[(1, 20915350), (2, 10457675), (5, 4183070), (10, 2091535), (25, 836614), (50, 418307), (557, 37550), (751, 27850), (1114, 18775), (1502, 13925), (2785, 7510), (3755, 5570)]