20814525

素因数分解:

$3^2\times 5^2\times {\mathrm{79}}^1\times {\mathrm{1171}}^1$

素因数の和:1266

約数の個数: 36

約数和(自身を含む): 37785280

約数和(自身を除く): 16970755

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 79, 225, 237, 395, 711, 1171, 1185, 1975, 3513, 3555, 5855, 5925, 10539, 17565, 17775, 29275, 52695, 87825, 92509, 263475, 277527, 462545, 832581, 1387635, 2312725, 4162905, 6938175, 20814525]

約数ペア:

[(1, 20814525), (3, 6938175), (5, 4162905), (9, 2312725), (15, 1387635), (25, 832581), (45, 462545), (75, 277527), (79, 263475), (225, 92509), (237, 87825), (395, 52695), (711, 29275), (1171, 17775), (1185, 17565), (1975, 10539), (3513, 5925), (3555, 5855)]