254901970

素因数分解:

$2^1\times 5^1\times {\mathrm{1277}}^1\times {\mathrm{19961}}^1$

素因数の和:21245

約数の個数: 16

約数和(自身を含む): 459205848

約数和(自身を除く): 204303878

約数列:

[1, 2, 5, 10, 1277, 2554, 6385, 12770, 19961, 39922, 99805, 199610, 25490197, 50980394, 127450985, 254901970]

約数ペア:

[(1, 254901970), (2, 127450985), (5, 50980394), (10, 25490197), (1277, 199610), (2554, 99805), (6385, 39922), (12770, 19961)]