18379375

素因数分解:

$5^4\times 7^1\times {\mathrm{4201}}^1$

素因数の和:4228

約数の個数: 20

約数和(自身を含む): 26254096

約数和(自身を除く): 7874721

約数列:

[1, 5, 7, 25, 35, 125, 175, 625, 875, 4201, 4375, 21005, 29407, 105025, 147035, 525125, 735175, 2625625, 3675875, 18379375]

約数ペア:

[(1, 18379375), (5, 3675875), (7, 2625625), (25, 735175), (35, 525125), (125, 147035), (175, 105025), (625, 29407), (875, 21005), (4201, 4375)]