7972512125

素因数分解:

$5^3\times {\mathrm{79}}^1\times {\mathrm{199}}^1\times {\mathrm{4057}}^1$

素因数の和:4350

約数の個数: 32

約数和(自身を含む): 10128768000

約数和(自身を除く): 2156255875

約数列:

[1, 5, 25, 79, 125, 199, 395, 995, 1975, 4057, 4975, 9875, 15721, 20285, 24875, 78605, 101425, 320503, 393025, 507125, 807343, 1602515, 1965125, 4036715, 8012575, 20183575, 40062875, 63780097, 100917875, 318900485, 1594502425, 7972512125]

約数ペア:

[(1, 7972512125), (5, 1594502425), (25, 318900485), (79, 100917875), (125, 63780097), (199, 40062875), (395, 20183575), (995, 8012575), (1975, 4036715), (4057, 1965125), (4975, 1602515), (9875, 807343), (15721, 507125), (20285, 393025), (24875, 320503), (78605, 101425)]