81279125

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1663}}^1$

素因数の和:1718

約数の個数: 32

約数和(自身を含む): 112140288

約数和(自身を除く): 30861163

約数列:

[1, 5, 17, 23, 25, 85, 115, 125, 391, 425, 575, 1663, 1955, 2125, 2875, 8315, 9775, 28271, 38249, 41575, 48875, 141355, 191245, 207875, 650233, 706775, 956225, 3251165, 3533875, 4781125, 16255825, 81279125]

約数ペア:

[(1, 81279125), (5, 16255825), (17, 4781125), (23, 3533875), (25, 3251165), (85, 956225), (115, 706775), (125, 650233), (391, 207875), (425, 191245), (575, 141355), (1663, 48875), (1955, 41575), (2125, 38249), (2875, 28271), (8315, 9775)]