81250625

素因数分解:

$5^4\times {\mathrm{71}}^1\times {\mathrm{1831}}^1$

素因数の和:1922

約数の個数: 20

約数和(自身を含む): 103017024

約数和(自身を除く): 21766399

約数列:

[1, 5, 25, 71, 125, 355, 625, 1775, 1831, 8875, 9155, 44375, 45775, 130001, 228875, 650005, 1144375, 3250025, 16250125, 81250625]

約数ペア:

[(1, 81250625), (5, 16250125), (25, 3250025), (71, 1144375), (125, 650005), (355, 228875), (625, 130001), (1775, 45775), (1831, 44375), (8875, 9155)]