28735625

素因数分解:

$5^4\times {\mathrm{23}}^1\times {\mathrm{1999}}^1$

素因数の和:2042

約数の個数: 20

約数和(自身を含む): 37488000

約数和(自身を除く): 8752375

約数列:

[1, 5, 23, 25, 115, 125, 575, 625, 1999, 2875, 9995, 14375, 45977, 49975, 229885, 249875, 1149425, 1249375, 5747125, 28735625]

約数ペア:

[(1, 28735625), (5, 5747125), (23, 1249375), (25, 1149425), (115, 249875), (125, 229885), (575, 49975), (625, 45977), (1999, 14375), (2875, 9995)]