30503020

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{21481}}^1$

素因数の和:21561

約数の個数: 24

約数和(自身を含む): 64961568

約数和(自身を除く): 34458548

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 21481, 42962, 85924, 107405, 214810, 429620, 1525151, 3050302, 6100604, 7625755, 15251510, 30503020]

約数ペア:

[(1, 30503020), (2, 15251510), (4, 7625755), (5, 6100604), (10, 3050302), (20, 1525151), (71, 429620), (142, 214810), (284, 107405), (355, 85924), (710, 42962), (1420, 21481)]