208047775

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{277}}^1\times {\mathrm{2311}}^1$

素因数の和:2611

約数の個数: 24

約数和(自身を含む): 278947424

約数和(自身を除く): 70899649

約数列:

[1, 5, 13, 25, 65, 277, 325, 1385, 2311, 3601, 6925, 11555, 18005, 30043, 57775, 90025, 150215, 640147, 751075, 3200735, 8321911, 16003675, 41609555, 208047775]

約数ペア:

[(1, 208047775), (5, 41609555), (13, 16003675), (25, 8321911), (65, 3200735), (277, 751075), (325, 640147), (1385, 150215), (2311, 90025), (3601, 57775), (6925, 30043), (11555, 18005)]