20118181208

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{1061}}^1\times {\mathrm{139423}}^1$

素因数の和:140507

約数の個数: 32

約数和(自身を含む): 39978437760

約数和(自身を除く): 19860256552

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 1061, 2122, 4244, 8488, 18037, 36074, 72148, 139423, 144296, 278846, 557692, 1115384, 2370191, 4740382, 9480764, 18961528, 147927803, 295855606, 591711212, 1183422424, 2514772651, 5029545302, 10059090604, 20118181208]

約数ペア:

[(1, 20118181208), (2, 10059090604), (4, 5029545302), (8, 2514772651), (17, 1183422424), (34, 591711212), (68, 295855606), (136, 147927803), (1061, 18961528), (2122, 9480764), (4244, 4740382), (8488, 2370191), (18037, 1115384), (36074, 557692), (72148, 278846), (139423, 144296)]