19907954975

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{1151}}^1\times {\mathrm{40697}}^1$

素因数の和:41875

約数の個数: 24

約数和(自身を含む): 26161325568

約数和(自身を除く): 6253370593

約数列:

[1, 5, 17, 25, 85, 425, 1151, 5755, 19567, 28775, 40697, 97835, 203485, 489175, 691849, 1017425, 3459245, 17296225, 46842247, 234211235, 796318199, 1171056175, 3981590995, 19907954975]

約数ペア:

[(1, 19907954975), (5, 3981590995), (17, 1171056175), (25, 796318199), (85, 234211235), (425, 46842247), (1151, 17296225), (5755, 3459245), (19567, 1017425), (28775, 691849), (40697, 489175), (97835, 203485)]