78981920

素因数分解:

$2^5\times 5^1\times {\mathrm{149}}^1\times {\mathrm{3313}}^1$

素因数の和:3477

約数の個数: 48

約数和(自身を含む): 187903800

約数和(自身を除く): 108921880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 149, 160, 298, 596, 745, 1192, 1490, 2384, 2980, 3313, 4768, 5960, 6626, 11920, 13252, 16565, 23840, 26504, 33130, 53008, 66260, 106016, 132520, 265040, 493637, 530080, 987274, 1974548, 2468185, 3949096, 4936370, 7898192, 9872740, 15796384, 19745480, 39490960, 78981920]

約数ペア:

[(1, 78981920), (2, 39490960), (4, 19745480), (5, 15796384), (8, 9872740), (10, 7898192), (16, 4936370), (20, 3949096), (32, 2468185), (40, 1974548), (80, 987274), (149, 530080), (160, 493637), (298, 265040), (596, 132520), (745, 106016), (1192, 66260), (1490, 53008), (2384, 33130), (2980, 26504), (3313, 23840), (4768, 16565), (5960, 13252), (6626, 11920)]