12811825

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{499}}^1$

素因数の和:601

約数の個数: 24

約数和(自身を含む): 17360000

約数和(自身を除く): 4548175

約数列:

[1, 5, 13, 25, 65, 79, 325, 395, 499, 1027, 1975, 2495, 5135, 6487, 12475, 25675, 32435, 39421, 162175, 197105, 512473, 985525, 2562365, 12811825]

約数ペア:

[(1, 12811825), (5, 2562365), (13, 985525), (25, 512473), (65, 197105), (79, 162175), (325, 39421), (395, 32435), (499, 25675), (1027, 12475), (1975, 6487), (2495, 5135)]