153455420

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{42391}}^1$

素因数の和:42581

約数の個数: 24

約数和(自身を含む): 324044448

約数和(自身を除く): 170589028

約数列:

[1, 2, 4, 5, 10, 20, 181, 362, 724, 905, 1810, 3620, 42391, 84782, 169564, 211955, 423910, 847820, 7672771, 15345542, 30691084, 38363855, 76727710, 153455420]

約数ペア:

[(1, 153455420), (2, 76727710), (4, 38363855), (5, 30691084), (10, 15345542), (20, 7672771), (181, 847820), (362, 423910), (724, 211955), (905, 169564), (1810, 84782), (3620, 42391)]