8638125

素因数分解:

$3^1\times 5^4\times {\mathrm{17}}^1\times {\mathrm{271}}^1$

素因数の和:311

約数の個数: 40

約数和(自身を含む): 15295104

約数和(自身を除く): 6656979

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 125, 255, 271, 375, 425, 625, 813, 1275, 1355, 1875, 2125, 4065, 4607, 6375, 6775, 10625, 13821, 20325, 23035, 31875, 33875, 69105, 101625, 115175, 169375, 345525, 508125, 575875, 1727625, 2879375, 8638125]

約数ペア:

[(1, 8638125), (3, 2879375), (5, 1727625), (15, 575875), (17, 508125), (25, 345525), (51, 169375), (75, 115175), (85, 101625), (125, 69105), (255, 33875), (271, 31875), (375, 23035), (425, 20325), (625, 13821), (813, 10625), (1275, 6775), (1355, 6375), (1875, 4607), (2125, 4065)]