20178690850

素因数分解:

$2^1\times 5^2\times {\mathrm{971}}^1\times {\mathrm{415627}}^1$

素因数の和:416610

約数の個数: 24

約数和(自身を含む): 37571108688

約数和(自身を除く): 17392417838

約数列:

[1, 2, 5, 10, 25, 50, 971, 1942, 4855, 9710, 24275, 48550, 415627, 831254, 2078135, 4156270, 10390675, 20781350, 403573817, 807147634, 2017869085, 4035738170, 10089345425, 20178690850]

約数ペア:

[(1, 20178690850), (2, 10089345425), (5, 4035738170), (10, 2017869085), (25, 807147634), (50, 403573817), (971, 20781350), (1942, 10390675), (4855, 4156270), (9710, 2078135), (24275, 831254), (48550, 415627)]