51018202220

素因数分解:

$2^2\times 5^1\times {\mathrm{691}}^1\times {\mathrm{3691621}}^1$

素因数の和:3692321

約数の個数: 24

約数和(自身を含む): 107293301808

約数和(自身を除く): 56275099588

約数列:

[1, 2, 4, 5, 10, 20, 691, 1382, 2764, 3455, 6910, 13820, 3691621, 7383242, 14766484, 18458105, 36916210, 73832420, 2550910111, 5101820222, 10203640444, 12754550555, 25509101110, 51018202220]

約数ペア:

[(1, 51018202220), (2, 25509101110), (4, 12754550555), (5, 10203640444), (10, 5101820222), (20, 2550910111), (691, 73832420), (1382, 36916210), (2764, 18458105), (3455, 14766484), (6910, 7383242), (13820, 3691621)]