20808515572

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{769}}^1\times {\mathrm{520369}}^1$

素因数の和:521155

約数の個数: 24

約数和(自身を含む): 39267120200

約数和(自身を除く): 18458604628

約数列:

[1, 2, 4, 13, 26, 52, 769, 1538, 3076, 9997, 19994, 39988, 520369, 1040738, 2081476, 6764797, 13529594, 27059188, 400163761, 800327522, 1600655044, 5202128893, 10404257786, 20808515572]

約数ペア:

[(1, 20808515572), (2, 10404257786), (4, 5202128893), (13, 1600655044), (26, 800327522), (52, 400163761), (769, 27059188), (1538, 13529594), (3076, 6764797), (9997, 2081476), (19994, 1040738), (39988, 520369)]