20121207490

素因数分解:

$2^1\times 5^1\times {\mathrm{223}}^1\times {\mathrm{2029}}^1\times {\mathrm{4447}}^1$

素因数の和:6706

約数の個数: 32

約数和(自身を含む): 36406702080

約数和(自身を除く): 16285494590

約数列:

[1, 2, 5, 10, 223, 446, 1115, 2029, 2230, 4058, 4447, 8894, 10145, 20290, 22235, 44470, 452467, 904934, 991681, 1983362, 2262335, 4524670, 4958405, 9022963, 9916810, 18045926, 45114815, 90229630, 2012120749, 4024241498, 10060603745, 20121207490]

約数ペア:

[(1, 20121207490), (2, 10060603745), (5, 4024241498), (10, 2012120749), (223, 90229630), (446, 45114815), (1115, 18045926), (2029, 9916810), (2230, 9022963), (4058, 4958405), (4447, 4524670), (8894, 2262335), (10145, 1983362), (20290, 991681), (22235, 904934), (44470, 452467)]