78821215

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{6857}}^1$

素因数の和:6903

約数の個数: 24

約数和(自身を含む): 109453680

約数和(自身を除く): 30632465

約数列:

[1, 5, 11, 19, 55, 95, 121, 209, 605, 1045, 2299, 6857, 11495, 34285, 75427, 130283, 377135, 651415, 829697, 1433113, 4148485, 7165565, 15764243, 78821215]

約数ペア:

[(1, 78821215), (5, 15764243), (11, 7165565), (19, 4148485), (55, 1433113), (95, 829697), (121, 651415), (209, 377135), (605, 130283), (1045, 75427), (2299, 34285), (6857, 11495)]