98700625

素因数分解:

$5^4\times {\mathrm{79}}^1\times {\mathrm{1999}}^1$

素因数の和:2098

約数の個数: 20

約数和(自身を含む): 124960000

約数和(自身を除く): 26259375

約数列:

[1, 5, 25, 79, 125, 395, 625, 1975, 1999, 9875, 9995, 49375, 49975, 157921, 249875, 789605, 1249375, 3948025, 19740125, 98700625]

約数ペア:

[(1, 98700625), (5, 19740125), (25, 3948025), (79, 1249375), (125, 789605), (395, 249875), (625, 157921), (1975, 49975), (1999, 49375), (9875, 9995)]