85867884040

素因数分解:

$2^3\times 5^1\times {\mathrm{10223}}^1\times {\mathrm{209987}}^1$

素因数の和:220221

約数の個数: 32

約数和(自身を含む): 193222558080

約数和(自身を除く): 107354674040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 10223, 20446, 40892, 51115, 81784, 102230, 204460, 209987, 408920, 419974, 839948, 1049935, 1679896, 2099870, 4199740, 8399480, 2146697101, 4293394202, 8586788404, 10733485505, 17173576808, 21466971010, 42933942020, 85867884040]

約数ペア:

[(1, 85867884040), (2, 42933942020), (4, 21466971010), (5, 17173576808), (8, 10733485505), (10, 8586788404), (20, 4293394202), (40, 2146697101), (10223, 8399480), (20446, 4199740), (40892, 2099870), (51115, 1679896), (81784, 1049935), (102230, 839948), (204460, 419974), (209987, 408920)]