80517140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{2633}}^1$

素因数の和:2792

約数の個数: 48

約数和(自身を含む): 185855040

約数和(自身を除く): 105337900

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 139, 220, 278, 556, 695, 1390, 1529, 2633, 2780, 3058, 5266, 6116, 7645, 10532, 13165, 15290, 26330, 28963, 30580, 52660, 57926, 115852, 144815, 289630, 365987, 579260, 731974, 1463948, 1829935, 3659870, 4025857, 7319740, 8051714, 16103428, 20129285, 40258570, 80517140]

約数ペア:

[(1, 80517140), (2, 40258570), (4, 20129285), (5, 16103428), (10, 8051714), (11, 7319740), (20, 4025857), (22, 3659870), (44, 1829935), (55, 1463948), (110, 731974), (139, 579260), (220, 365987), (278, 289630), (556, 144815), (695, 115852), (1390, 57926), (1529, 52660), (2633, 30580), (2780, 28963), (3058, 26330), (5266, 15290), (6116, 13165), (7645, 10532)]