20402475

素因数分解:

$3^1\times 5^2\times {\mathrm{199}}^1\times {\mathrm{1367}}^1$

素因数の和:1579

約数の個数: 24

約数和(自身を含む): 33926400

約数和(自身を除く): 13523925

約数列:

[1, 3, 5, 15, 25, 75, 199, 597, 995, 1367, 2985, 4101, 4975, 6835, 14925, 20505, 34175, 102525, 272033, 816099, 1360165, 4080495, 6800825, 20402475]

約数ペア:

[(1, 20402475), (3, 6800825), (5, 4080495), (15, 1360165), (25, 816099), (75, 272033), (199, 102525), (597, 34175), (995, 20505), (1367, 14925), (2985, 6835), (4101, 4975)]