20180615

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2609}}^1$

素因数の和:2651

約数の個数: 32

約数和(自身を含む): 31570560

約数和(自身を除く): 11389945

約数列:

[1, 5, 7, 13, 17, 35, 65, 85, 91, 119, 221, 455, 595, 1105, 1547, 2609, 7735, 13045, 18263, 33917, 44353, 91315, 169585, 221765, 237419, 310471, 576589, 1187095, 1552355, 2882945, 4036123, 20180615]

約数ペア:

[(1, 20180615), (5, 4036123), (7, 2882945), (13, 1552355), (17, 1187095), (35, 576589), (65, 310471), (85, 237419), (91, 221765), (119, 169585), (221, 91315), (455, 44353), (595, 33917), (1105, 18263), (1547, 13045), (2609, 7735)]