642440786

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{79451}}^1$

素因数の和:79777

約数の個数: 16

約数和(自身を含む): 1041139008

約数和(自身を除く): 398698222

約数列:

[1, 2, 13, 26, 311, 622, 4043, 8086, 79451, 158902, 1032863, 2065726, 24709261, 49418522, 321220393, 642440786]

約数ペア:

[(1, 642440786), (2, 321220393), (13, 49418522), (26, 24709261), (311, 2065726), (622, 1032863), (4043, 158902), (8086, 79451)]