18731690

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1\times {\mathrm{181}}^1$

素因数の和:398

約数の個数: 32

約数和(自身を含む): 34594560

約数和(自身を除く): 15862870

約数列:

[1, 2, 5, 10, 79, 131, 158, 181, 262, 362, 395, 655, 790, 905, 1310, 1810, 10349, 14299, 20698, 23711, 28598, 47422, 51745, 71495, 103490, 118555, 142990, 237110, 1873169, 3746338, 9365845, 18731690]

約数ペア:

[(1, 18731690), (2, 9365845), (5, 3746338), (10, 1873169), (79, 237110), (131, 142990), (158, 118555), (181, 103490), (262, 71495), (362, 51745), (395, 47422), (655, 28598), (790, 23711), (905, 20698), (1310, 14299), (1810, 10349)]