80456780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{129769}}^1$

素因数の和:129809

約数の個数: 24

約数和(自身を含む): 174410880

約数和(自身を除く): 93954100

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 129769, 259538, 519076, 648845, 1297690, 2595380, 4022839, 8045678, 16091356, 20114195, 40228390, 80456780]

約数ペア:

[(1, 80456780), (2, 40228390), (4, 20114195), (5, 16091356), (10, 8045678), (20, 4022839), (31, 2595380), (62, 1297690), (124, 648845), (155, 519076), (310, 259538), (620, 129769)]