1888890965

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{221831}}^1$

素因数の和:221980

約数の個数: 16

約数和(自身を含む): 2459673216

約数和(自身を除く): 570782251

約数列:

[1, 5, 13, 65, 131, 655, 1703, 8515, 221831, 1109155, 2883803, 14419015, 29059861, 145299305, 377778193, 1888890965]

約数ペア:

[(1, 1888890965), (5, 377778193), (13, 145299305), (65, 29059861), (131, 14419015), (655, 2883803), (1703, 1109155), (8515, 221831)]