181292560

素因数分解:

$2^4\times 5^1\times {\mathrm{2266157}}^1$

素因数の和:2266170

約数の個数: 20

約数和(自身を含む): 421505388

約数和(自身を除く): 240212828

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2266157, 4532314, 9064628, 11330785, 18129256, 22661570, 36258512, 45323140, 90646280, 181292560]

約数ペア:

[(1, 181292560), (2, 90646280), (4, 45323140), (5, 36258512), (8, 22661570), (10, 18129256), (16, 11330785), (20, 9064628), (40, 4532314), (80, 2266157)]