164007280

素因数分解:

$2^4\times 5^1\times {\mathrm{149}}^1\times {\mathrm{13759}}^1$

素因数の和:13921

約数の個数: 40

約数和(自身を含む): 383904000

約数和(自身を除く): 219896720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 149, 298, 596, 745, 1192, 1490, 2384, 2980, 5960, 11920, 13759, 27518, 55036, 68795, 110072, 137590, 220144, 275180, 550360, 1100720, 2050091, 4100182, 8200364, 10250455, 16400728, 20500910, 32801456, 41001820, 82003640, 164007280]

約数ペア:

[(1, 164007280), (2, 82003640), (4, 41001820), (5, 32801456), (8, 20500910), (10, 16400728), (16, 10250455), (20, 8200364), (40, 4100182), (80, 2050091), (149, 1100720), (298, 550360), (596, 275180), (745, 220144), (1192, 137590), (1490, 110072), (2384, 68795), (2980, 55036), (5960, 27518), (11920, 13759)]