1306875

素因数分解:

$3^1\times 5^4\times {\mathrm{17}}^1\times {\mathrm{41}}^1$

素因数の和:81

約数の個数: 40

約数和(自身を含む): 2361744

約数和(自身を除く): 1054869

約数列:

[1, 3, 5, 15, 17, 25, 41, 51, 75, 85, 123, 125, 205, 255, 375, 425, 615, 625, 697, 1025, 1275, 1875, 2091, 2125, 3075, 3485, 5125, 6375, 10455, 10625, 15375, 17425, 25625, 31875, 52275, 76875, 87125, 261375, 435625, 1306875]

約数ペア:

[(1, 1306875), (3, 435625), (5, 261375), (15, 87125), (17, 76875), (25, 52275), (41, 31875), (51, 25625), (75, 17425), (85, 15375), (123, 10625), (125, 10455), (205, 6375), (255, 5125), (375, 3485), (425, 3075), (615, 2125), (625, 2091), (697, 1875), (1025, 1275)]