1999985

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1061}}^1$

素因数の和:1108

約数の個数: 16

約数和(自身を含む): 2676240

約数和(自身を除く): 676255

約数列:

[1, 5, 13, 29, 65, 145, 377, 1061, 1885, 5305, 13793, 30769, 68965, 153845, 399997, 1999985]

約数ペア:

[(1, 1999985), (5, 399997), (13, 153845), (29, 68965), (65, 30769), (145, 13793), (377, 5305), (1061, 1885)]