81279580

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{68881}}^1$

素因数の和:68949

約数の個数: 24

約数和(自身を含む): 173582640

約数和(自身を除く): 92303060

約数列:

[1, 2, 4, 5, 10, 20, 59, 118, 236, 295, 590, 1180, 68881, 137762, 275524, 344405, 688810, 1377620, 4063979, 8127958, 16255916, 20319895, 40639790, 81279580]

約数ペア:

[(1, 81279580), (2, 40639790), (4, 20319895), (5, 16255916), (10, 8127958), (20, 4063979), (59, 1377620), (118, 688810), (236, 344405), (295, 275524), (590, 137762), (1180, 68881)]