18763125

素因数分解:

$3^1\times 5^4\times {\mathrm{10007}}^1$

素因数の和:10030

約数の個数: 20

約数和(自身を含む): 31264992

約数和(自身を除く): 12501867

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 625, 1875, 10007, 30021, 50035, 150105, 250175, 750525, 1250875, 3752625, 6254375, 18763125]

約数ペア:

[(1, 18763125), (3, 6254375), (5, 3752625), (15, 1250875), (25, 750525), (75, 250175), (125, 150105), (375, 50035), (625, 30021), (1875, 10007)]