19893125

素因数分解:

$5^4\times 7^1\times {\mathrm{4547}}^1$

素因数の和:4574

約数の個数: 20

約数和(自身を含む): 28415904

約数和(自身を除く): 8522779

約数列:

[1, 5, 7, 25, 35, 125, 175, 625, 875, 4375, 4547, 22735, 31829, 113675, 159145, 568375, 795725, 2841875, 3978625, 19893125]

約数ペア:

[(1, 19893125), (5, 3978625), (7, 2841875), (25, 795725), (35, 568375), (125, 159145), (175, 113675), (625, 31829), (875, 22735), (4375, 4547)]