20206225

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{787}}^1$

素因数の和:889

約数の個数: 24

約数和(自身を含む): 27359360

約数和(自身を除く): 7153135

約数列:

[1, 5, 13, 25, 65, 79, 325, 395, 787, 1027, 1975, 3935, 5135, 10231, 19675, 25675, 51155, 62173, 255775, 310865, 808249, 1554325, 4041245, 20206225]

約数ペア:

[(1, 20206225), (5, 4041245), (13, 1554325), (25, 808249), (65, 310865), (79, 255775), (325, 62173), (395, 51155), (787, 25675), (1027, 19675), (1975, 10231), (3935, 5135)]