981020

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{271}}^1$

素因数の和:461

約数の個数: 24

約数和(自身を含む): 2079168

約数和(自身を除く): 1098148

約数列:

[1, 2, 4, 5, 10, 20, 181, 271, 362, 542, 724, 905, 1084, 1355, 1810, 2710, 3620, 5420, 49051, 98102, 196204, 245255, 490510, 981020]

約数ペア:

[(1, 981020), (2, 490510), (4, 245255), (5, 196204), (10, 98102), (20, 49051), (181, 5420), (271, 3620), (362, 2710), (542, 1810), (724, 1355), (905, 1084)]