87702140

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71887}}^1$

素因数の和:71957

約数の個数: 24

約数和(自身を含む): 187196352

約数和(自身を除く): 99494212

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 71887, 143774, 287548, 359435, 718870, 1437740, 4385107, 8770214, 17540428, 21925535, 43851070, 87702140]

約数ペア:

[(1, 87702140), (2, 43851070), (4, 21925535), (5, 17540428), (10, 8770214), (20, 4385107), (61, 1437740), (122, 718870), (244, 359435), (305, 287548), (610, 143774), (1220, 71887)]