18856875

素因数分解:

$3^1\times 5^4\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:225

約数の個数: 40

約数和(自身を含む): 32052240

約数和(自身を除く): 13195365

約数列:

[1, 3, 5, 15, 25, 75, 89, 113, 125, 267, 339, 375, 445, 565, 625, 1335, 1695, 1875, 2225, 2825, 6675, 8475, 10057, 11125, 14125, 30171, 33375, 42375, 50285, 55625, 70625, 150855, 166875, 211875, 251425, 754275, 1257125, 3771375, 6285625, 18856875]

約数ペア:

[(1, 18856875), (3, 6285625), (5, 3771375), (15, 1257125), (25, 754275), (75, 251425), (89, 211875), (113, 166875), (125, 150855), (267, 70625), (339, 55625), (375, 50285), (445, 42375), (565, 33375), (625, 30171), (1335, 14125), (1695, 11125), (1875, 10057), (2225, 8475), (2825, 6675)]