20103080

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{3373}}^1$

素因数の和:3533

約数の個数: 32

約数和(自身を含む): 45549000

約数和(自身を除く): 25445920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 298, 596, 745, 1192, 1490, 2980, 3373, 5960, 6746, 13492, 16865, 26984, 33730, 67460, 134920, 502577, 1005154, 2010308, 2512885, 4020616, 5025770, 10051540, 20103080]

約数ペア:

[(1, 20103080), (2, 10051540), (4, 5025770), (5, 4020616), (8, 2512885), (10, 2010308), (20, 1005154), (40, 502577), (149, 134920), (298, 67460), (596, 33730), (745, 26984), (1192, 16865), (1490, 13492), (2980, 6746), (3373, 5960)]