641330492

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{1325063}}^1$

素因数の和:1325089

約数の個数: 18

約数和(自身を含む): 1233634584

約数和(自身を除く): 592304092

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 1325063, 2650126, 5300252, 14575693, 29151386, 58302772, 160332623, 320665246, 641330492]

約数ペア:

[(1, 641330492), (2, 320665246), (4, 160332623), (11, 58302772), (22, 29151386), (44, 14575693), (121, 5300252), (242, 2650126), (484, 1325063)]