81433658

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{43}}^2\times {\mathrm{61}}^1$

素因数の和:187

約数の個数: 36

約数和(自身を含む): 134149338

約数和(自身を除く): 52715680

約数列:

[1, 2, 19, 38, 43, 61, 86, 122, 361, 722, 817, 1159, 1634, 1849, 2318, 2623, 3698, 5246, 15523, 22021, 31046, 35131, 44042, 49837, 70262, 99674, 112789, 225578, 667489, 946903, 1334978, 1893806, 2142991, 4285982, 40716829, 81433658]

約数ペア:

[(1, 81433658), (2, 40716829), (19, 4285982), (38, 2142991), (43, 1893806), (61, 1334978), (86, 946903), (122, 667489), (361, 225578), (722, 112789), (817, 99674), (1159, 70262), (1634, 49837), (1849, 44042), (2318, 35131), (2623, 31046), (3698, 22021), (5246, 15523)]