28294315

素因数分解:

$5^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{2179}}^1$

素因数の和:2251

約数の個数: 24

約数和(自身を含む): 40260240

約数和(自身を除く): 11965925

約数列:

[1, 5, 7, 35, 49, 53, 245, 265, 371, 1855, 2179, 2597, 10895, 12985, 15253, 76265, 106771, 115487, 533855, 577435, 808409, 4042045, 5658863, 28294315]

約数ペア:

[(1, 28294315), (5, 5658863), (7, 4042045), (35, 808409), (49, 577435), (53, 533855), (245, 115487), (265, 106771), (371, 76265), (1855, 15253), (2179, 12985), (2597, 10895)]