81512945

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{6263}}^1$

素因数の和:6424

約数の個数: 16

約数和(自身を含む): 103731840

約数和(自身を除く): 22218895

約数列:

[1, 5, 19, 95, 137, 685, 2603, 6263, 13015, 31315, 118997, 594985, 858031, 4290155, 16302589, 81512945]

約数ペア:

[(1, 81512945), (5, 16302589), (19, 4290155), (95, 858031), (137, 594985), (685, 118997), (2603, 31315), (6263, 13015)]