20851450

素因数分解:

$2^1\times 5^2\times {\mathrm{101}}^1\times {\mathrm{4129}}^1$

素因数の和:4242

約数の個数: 24

約数和(自身を含む): 39177180

約数和(自身を除く): 18325730

約数列:

[1, 2, 5, 10, 25, 50, 101, 202, 505, 1010, 2525, 4129, 5050, 8258, 20645, 41290, 103225, 206450, 417029, 834058, 2085145, 4170290, 10425725, 20851450]

約数ペア:

[(1, 20851450), (2, 10425725), (5, 4170290), (10, 2085145), (25, 834058), (50, 417029), (101, 206450), (202, 103225), (505, 41290), (1010, 20645), (2525, 8258), (4129, 5050)]