278966455

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{701}}^1$

素因数の和:855

約数の個数: 32

約数和(自身を含む): 363916800

約数和(自身を除く): 84950345

約数列:

[1, 5, 19, 59, 71, 95, 295, 355, 701, 1121, 1349, 3505, 4189, 5605, 6745, 13319, 20945, 41359, 49771, 66595, 79591, 206795, 248855, 397955, 785821, 945649, 2936489, 3929105, 4728245, 14682445, 55793291, 278966455]

約数ペア:

[(1, 278966455), (5, 55793291), (19, 14682445), (59, 4728245), (71, 3929105), (95, 2936489), (295, 945649), (355, 785821), (701, 397955), (1121, 248855), (1349, 206795), (3505, 79591), (4189, 66595), (5605, 49771), (6745, 41359), (13319, 20945)]