15279620

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{163}}^1$

素因数の和:324

約数の個数: 48

約数和(自身を含む): 33337920

約数和(自身を除く): 18058300

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 109, 163, 172, 215, 218, 326, 430, 436, 545, 652, 815, 860, 1090, 1630, 2180, 3260, 4687, 7009, 9374, 14018, 17767, 18748, 23435, 28036, 35045, 35534, 46870, 70090, 71068, 88835, 93740, 140180, 177670, 355340, 763981, 1527962, 3055924, 3819905, 7639810, 15279620]

約数ペア:

[(1, 15279620), (2, 7639810), (4, 3819905), (5, 3055924), (10, 1527962), (20, 763981), (43, 355340), (86, 177670), (109, 140180), (163, 93740), (172, 88835), (215, 71068), (218, 70090), (326, 46870), (430, 35534), (436, 35045), (545, 28036), (652, 23435), (815, 18748), (860, 17767), (1090, 14018), (1630, 9374), (2180, 7009), (3260, 4687)]