20748290

素因数分解:

$2^1\times 5^1\times {\mathrm{449}}^1\times {\mathrm{4621}}^1$

素因数の和:5077

約数の個数: 16

約数和(自身を含む): 37438200

約数和(自身を除く): 16689910

約数列:

[1, 2, 5, 10, 449, 898, 2245, 4490, 4621, 9242, 23105, 46210, 2074829, 4149658, 10374145, 20748290]

約数ペア:

[(1, 20748290), (2, 10374145), (5, 4149658), (10, 2074829), (449, 46210), (898, 23105), (2245, 9242), (4490, 4621)]