290395220

素因数分解:

$2^2\times 5^1\times {\mathrm{881}}^1\times {\mathrm{16481}}^1$

素因数の和:17371

約数の個数: 24

約数和(自身を含む): 610559208

約数和(自身を除く): 320163988

約数列:

[1, 2, 4, 5, 10, 20, 881, 1762, 3524, 4405, 8810, 16481, 17620, 32962, 65924, 82405, 164810, 329620, 14519761, 29039522, 58079044, 72598805, 145197610, 290395220]

約数ペア:

[(1, 290395220), (2, 145197610), (4, 72598805), (5, 58079044), (10, 29039522), (20, 14519761), (881, 329620), (1762, 164810), (3524, 82405), (4405, 65924), (8810, 32962), (16481, 17620)]