16513375

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{409}}^1$

素因数の和:460

約数の個数: 32

約数和(自身を含む): 23025600

約数和(自身を除く): 6512225

約数列:

[1, 5, 17, 19, 25, 85, 95, 125, 323, 409, 425, 475, 1615, 2045, 2125, 2375, 6953, 7771, 8075, 10225, 34765, 38855, 40375, 51125, 132107, 173825, 194275, 660535, 869125, 971375, 3302675, 16513375]

約数ペア:

[(1, 16513375), (5, 3302675), (17, 971375), (19, 869125), (25, 660535), (85, 194275), (95, 173825), (125, 132107), (323, 51125), (409, 40375), (425, 38855), (475, 34765), (1615, 10225), (2045, 8075), (2125, 7771), (2375, 6953)]