20201232890

素因数分解:

$2^1\times 5^1\times {\mathrm{449}}^1\times {\mathrm{1049}}^1\times {\mathrm{4289}}^1$

素因数の和:5794

約数の個数: 32

約数和(自身を含む): 36486450000

約数和(自身を除く): 16285217110

約数列:

[1, 2, 5, 10, 449, 898, 1049, 2098, 2245, 4289, 4490, 5245, 8578, 10490, 21445, 42890, 471001, 942002, 1925761, 2355005, 3851522, 4499161, 4710010, 8998322, 9628805, 19257610, 22495805, 44991610, 2020123289, 4040246578, 10100616445, 20201232890]

約数ペア:

[(1, 20201232890), (2, 10100616445), (5, 4040246578), (10, 2020123289), (449, 44991610), (898, 22495805), (1049, 19257610), (2098, 9628805), (2245, 8998322), (4289, 4710010), (4490, 4499161), (5245, 3851522), (8578, 2355005), (10490, 1925761), (21445, 942002), (42890, 471001)]