309221125

素因数分解:

$5^3\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{401}}^1$

素因数の和:646

約数の個数: 32

約数和(自身を含む): 401356800

約数和(自身を除く): 92135675

約数列:

[1, 5, 25, 31, 125, 155, 199, 401, 775, 995, 2005, 3875, 4975, 6169, 10025, 12431, 24875, 30845, 50125, 62155, 79799, 154225, 310775, 398995, 771125, 1553875, 1994975, 2473769, 9974875, 12368845, 61844225, 309221125]

約数ペア:

[(1, 309221125), (5, 61844225), (25, 12368845), (31, 9974875), (125, 2473769), (155, 1994975), (199, 1553875), (401, 771125), (775, 398995), (995, 310775), (2005, 154225), (3875, 79799), (4975, 62155), (6169, 50125), (10025, 30845), (12431, 24875)]