66490220

素因数分解:

$2^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{11831}}^1$

素因数の和:12121

約数の個数: 24

約数和(自身を含む): 140138208

約数和(自身を除く): 73647988

約数列:

[1, 2, 4, 5, 10, 20, 281, 562, 1124, 1405, 2810, 5620, 11831, 23662, 47324, 59155, 118310, 236620, 3324511, 6649022, 13298044, 16622555, 33245110, 66490220]

約数ペア:

[(1, 66490220), (2, 33245110), (4, 16622555), (5, 13298044), (10, 6649022), (20, 3324511), (281, 236620), (562, 118310), (1124, 59155), (1405, 47324), (2810, 23662), (5620, 11831)]