21146080

素因数分解:

$2^5\times 5^1\times {\mathrm{149}}^1\times {\mathrm{887}}^1$

素因数の和:1051

約数の個数: 48

約数和(自身を含む): 50349600

約数和(自身を除く): 29203520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 149, 160, 298, 596, 745, 887, 1192, 1490, 1774, 2384, 2980, 3548, 4435, 4768, 5960, 7096, 8870, 11920, 14192, 17740, 23840, 28384, 35480, 70960, 132163, 141920, 264326, 528652, 660815, 1057304, 1321630, 2114608, 2643260, 4229216, 5286520, 10573040, 21146080]

約数ペア:

[(1, 21146080), (2, 10573040), (4, 5286520), (5, 4229216), (8, 2643260), (10, 2114608), (16, 1321630), (20, 1057304), (32, 660815), (40, 528652), (80, 264326), (149, 141920), (160, 132163), (298, 70960), (596, 35480), (745, 28384), (887, 23840), (1192, 17740), (1490, 14192), (1774, 11920), (2384, 8870), (2980, 7096), (3548, 5960), (4435, 4768)]