161766860

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{1373}}^1$

素因数の和:1562

約数の個数: 48

約数和(自身を含む): 350402976

約数和(自身を除く): 188636116

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 137, 172, 215, 274, 430, 548, 685, 860, 1370, 1373, 2740, 2746, 5492, 5891, 6865, 11782, 13730, 23564, 27460, 29455, 58910, 59039, 117820, 118078, 188101, 236156, 295195, 376202, 590390, 752404, 940505, 1180780, 1881010, 3762020, 8088343, 16176686, 32353372, 40441715, 80883430, 161766860]

約数ペア:

[(1, 161766860), (2, 80883430), (4, 40441715), (5, 32353372), (10, 16176686), (20, 8088343), (43, 3762020), (86, 1881010), (137, 1180780), (172, 940505), (215, 752404), (274, 590390), (430, 376202), (548, 295195), (685, 236156), (860, 188101), (1370, 118078), (1373, 117820), (2740, 59039), (2746, 58910), (5492, 29455), (5891, 27460), (6865, 23564), (11782, 13730)]