20700212

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{5039}}^1$

素因数の和:5135

約数の個数: 24

約数和(自身を含む): 39513600

約数和(自身を除く): 18813388

約数列:

[1, 2, 4, 13, 26, 52, 79, 158, 316, 1027, 2054, 4108, 5039, 10078, 20156, 65507, 131014, 262028, 398081, 796162, 1592324, 5175053, 10350106, 20700212]

約数ペア:

[(1, 20700212), (2, 10350106), (4, 5175053), (13, 1592324), (26, 796162), (52, 398081), (79, 262028), (158, 131014), (316, 65507), (1027, 20156), (2054, 10078), (4108, 5039)]