87278140

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{43207}}^1$

素因数の和:43317

約数の個数: 24

約数和(自身を含む): 185103072

約数和(自身を除く): 97824932

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 43207, 86414, 172828, 216035, 432070, 864140, 4363907, 8727814, 17455628, 21819535, 43639070, 87278140]

約数ペア:

[(1, 87278140), (2, 43639070), (4, 21819535), (5, 17455628), (10, 8727814), (20, 4363907), (101, 864140), (202, 432070), (404, 216035), (505, 172828), (1010, 86414), (2020, 43207)]