128552660

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{207343}}^1$

素因数の和:207383

約数の個数: 24

約数和(自身を含む): 278670336

約数和(自身を除く): 150117676

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 207343, 414686, 829372, 1036715, 2073430, 4146860, 6427633, 12855266, 25710532, 32138165, 64276330, 128552660]

約数ペア:

[(1, 128552660), (2, 64276330), (4, 32138165), (5, 25710532), (10, 12855266), (20, 6427633), (31, 4146860), (62, 2073430), (124, 1036715), (155, 829372), (310, 414686), (620, 207343)]