139820005

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{8179}}^1$

素因数の和:8460

約数の個数: 16

約数和(自身を含む): 181399680

約数和(自身を除く): 41579675

約数列:

[1, 5, 13, 65, 263, 1315, 3419, 8179, 17095, 40895, 106327, 531635, 2151077, 10755385, 27964001, 139820005]

約数ペア:

[(1, 139820005), (5, 27964001), (13, 10755385), (65, 2151077), (263, 531635), (1315, 106327), (3419, 40895), (8179, 17095)]