18248125

素因数分解:

$5^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:167

約数の個数: 40

約数和(自身を含む): 26941376

約数和(自身を除く): 8693251

約数列:

[1, 5, 7, 25, 35, 43, 97, 125, 175, 215, 301, 485, 625, 679, 875, 1075, 1505, 2425, 3395, 4171, 4375, 5375, 7525, 12125, 16975, 20855, 26875, 29197, 37625, 60625, 84875, 104275, 145985, 188125, 424375, 521375, 729925, 2606875, 3649625, 18248125]

約数ペア:

[(1, 18248125), (5, 3649625), (7, 2606875), (25, 729925), (35, 521375), (43, 424375), (97, 188125), (125, 145985), (175, 104275), (215, 84875), (301, 60625), (485, 37625), (625, 29197), (679, 26875), (875, 20855), (1075, 16975), (1505, 12125), (2425, 7525), (3395, 5375), (4171, 4375)]