204805220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{330331}}^1$

素因数の和:330371

約数の個数: 24

約数和(自身を含む): 443966208

約数和(自身を除く): 239160988

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 330331, 660662, 1321324, 1651655, 3303310, 6606620, 10240261, 20480522, 40961044, 51201305, 102402610, 204805220]

約数ペア:

[(1, 204805220), (2, 102402610), (4, 51201305), (5, 40961044), (10, 20480522), (20, 10240261), (31, 6606620), (62, 3303310), (124, 1651655), (155, 1321324), (310, 660662), (620, 330331)]