81279245

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{197}}^1$

素因数の和:365

約数の個数: 32

約数和(自身を含む): 106634880

約数和(自身を除く): 25355635

約数列:

[1, 5, 19, 43, 95, 101, 197, 215, 505, 817, 985, 1919, 3743, 4085, 4343, 8471, 9595, 18715, 19897, 21715, 42355, 82517, 99485, 160949, 378043, 412585, 804745, 855571, 1890215, 4277855, 16255849, 81279245]

約数ペア:

[(1, 81279245), (5, 16255849), (19, 4277855), (43, 1890215), (95, 855571), (101, 804745), (197, 412585), (215, 378043), (505, 160949), (817, 99485), (985, 82517), (1919, 42355), (3743, 21715), (4085, 19897), (4343, 18715), (8471, 9595)]