20513581010

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2837}}^1\times {\mathrm{55621}}^1$

素因数の和:58478

約数の個数: 32

約数和(自身を含む): 39779519472

約数和(自身を除く): 19265938462

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 2837, 5674, 14185, 28370, 36881, 55621, 73762, 111242, 184405, 278105, 368810, 556210, 723073, 1446146, 3615365, 7230730, 157796777, 315593554, 788983885, 1577967770, 2051358101, 4102716202, 10256790505, 20513581010]

約数ペア:

[(1, 20513581010), (2, 10256790505), (5, 4102716202), (10, 2051358101), (13, 1577967770), (26, 788983885), (65, 315593554), (130, 157796777), (2837, 7230730), (5674, 3615365), (14185, 1446146), (28370, 723073), (36881, 556210), (55621, 368810), (73762, 278105), (111242, 184405)]