20384585

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{7649}}^1$

素因数の和:7708

約数の個数: 16

約数和(自身を含む): 26989200

約数和(自身を除く): 6604615

約数列:

[1, 5, 13, 41, 65, 205, 533, 2665, 7649, 38245, 99437, 313609, 497185, 1568045, 4076917, 20384585]

約数ペア:

[(1, 20384585), (5, 4076917), (13, 1568045), (41, 497185), (65, 313609), (205, 99437), (533, 38245), (2665, 7649)]