47400625

素因数分解:

$5^4\times {\mathrm{149}}^1\times {\mathrm{509}}^1$

素因数の和:678

約数の個数: 20

約数和(自身を含む): 59746500

約数和(自身を除く): 12345875

約数列:

[1, 5, 25, 125, 149, 509, 625, 745, 2545, 3725, 12725, 18625, 63625, 75841, 93125, 318125, 379205, 1896025, 9480125, 47400625]

約数ペア:

[(1, 47400625), (5, 9480125), (25, 1896025), (125, 379205), (149, 318125), (509, 93125), (625, 75841), (745, 63625), (2545, 18625), (3725, 12725)]