179964920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{145133}}^1$

素因数の和:145175

約数の個数: 32

約数和(自身を含む): 417985920

約数和(自身を除く): 238021000

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 145133, 290266, 580532, 725665, 1161064, 1451330, 2902660, 4499123, 5805320, 8998246, 17996492, 22495615, 35992984, 44991230, 89982460, 179964920]

約数ペア:

[(1, 179964920), (2, 89982460), (4, 44991230), (5, 35992984), (8, 22495615), (10, 17996492), (20, 8998246), (31, 5805320), (40, 4499123), (62, 2902660), (124, 1451330), (155, 1161064), (248, 725665), (310, 580532), (620, 290266), (1240, 145133)]