8680625

素因数分解:

$5^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1$

素因数の和:99

約数の個数: 40

約数和(自身を含む): 12371040

約数和(自身を除く): 3690415

約数列:

[1, 5, 17, 19, 25, 43, 85, 95, 125, 215, 323, 425, 475, 625, 731, 817, 1075, 1615, 2125, 2375, 3655, 4085, 5375, 8075, 10625, 11875, 13889, 18275, 20425, 26875, 40375, 69445, 91375, 102125, 201875, 347225, 456875, 510625, 1736125, 8680625]

約数ペア:

[(1, 8680625), (5, 1736125), (17, 510625), (19, 456875), (25, 347225), (43, 201875), (85, 102125), (95, 91375), (125, 69445), (215, 40375), (323, 26875), (425, 20425), (475, 18275), (625, 13889), (731, 11875), (817, 10625), (1075, 8075), (1615, 5375), (2125, 4085), (2375, 3655)]