20086625

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{263}}^1$

素因数の和:338

約数の個数: 32

約数和(自身を含む): 27675648

約数和(自身を除く): 7589023

約数列:

[1, 5, 13, 25, 47, 65, 125, 235, 263, 325, 611, 1175, 1315, 1625, 3055, 3419, 5875, 6575, 12361, 15275, 17095, 32875, 61805, 76375, 85475, 160693, 309025, 427375, 803465, 1545125, 4017325, 20086625]

約数ペア:

[(1, 20086625), (5, 4017325), (13, 1545125), (25, 803465), (47, 427375), (65, 309025), (125, 160693), (235, 85475), (263, 76375), (325, 61805), (611, 32875), (1175, 17095), (1315, 15275), (1625, 12361), (3055, 6575), (3419, 5875)]