1640982005

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{682321}}^1$

素因数の和:682376

約数の個数: 16

約数和(自身を含む): 2177971824

約数和(自身を除く): 536989819

約数列:

[1, 5, 13, 37, 65, 185, 481, 2405, 682321, 3411605, 8870173, 25245877, 44350865, 126229385, 328196401, 1640982005]

約数ペア:

[(1, 1640982005), (5, 328196401), (13, 126229385), (37, 44350865), (65, 25245877), (185, 8870173), (481, 3411605), (2405, 682321)]