81473470

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{21611}}^1$

素因数の和:21660

約数の個数: 32

約数和(自身を含む): 163386720

約数和(自身を除く): 81913250

約数列:

[1, 2, 5, 10, 13, 26, 29, 58, 65, 130, 145, 290, 377, 754, 1885, 3770, 21611, 43222, 108055, 216110, 280943, 561886, 626719, 1253438, 1404715, 2809430, 3133595, 6267190, 8147347, 16294694, 40736735, 81473470]

約数ペア:

[(1, 81473470), (2, 40736735), (5, 16294694), (10, 8147347), (13, 6267190), (26, 3133595), (29, 2809430), (58, 1404715), (65, 1253438), (130, 626719), (145, 561886), (290, 280943), (377, 216110), (754, 108055), (1885, 43222), (3770, 21611)]