290037620

素因数分解:

$2^2\times 5^1\times {\mathrm{1381}}^1\times {\mathrm{10501}}^1$

素因数の和:11891

約数の個数: 24

約数和(自身を含む): 609578088

約数和(自身を除く): 319540468

約数列:

[1, 2, 4, 5, 10, 20, 1381, 2762, 5524, 6905, 10501, 13810, 21002, 27620, 42004, 52505, 105010, 210020, 14501881, 29003762, 58007524, 72509405, 145018810, 290037620]

約数ペア:

[(1, 290037620), (2, 145018810), (4, 72509405), (5, 58007524), (10, 29003762), (20, 14501881), (1381, 210020), (2762, 105010), (5524, 52505), (6905, 42004), (10501, 27620), (13810, 21002)]