8108725

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{397}}^1$

素因数の和:469

約数の個数: 24

約数和(自身を含む): 10857440

約数和(自身を除く): 2748715

約数列:

[1, 5, 19, 25, 43, 95, 215, 397, 475, 817, 1075, 1985, 4085, 7543, 9925, 17071, 20425, 37715, 85355, 188575, 324349, 426775, 1621745, 8108725]

約数ペア:

[(1, 8108725), (5, 1621745), (19, 426775), (25, 324349), (43, 188575), (95, 85355), (215, 37715), (397, 20425), (475, 17071), (817, 9925), (1075, 7543), (1985, 4085)]