20500784

素因数分解:

$2^4\times {\mathrm{181}}^1\times {\mathrm{7079}}^1$

素因数の和:7268

約数の個数: 20

約数和(自身を含む): 39945360

約数和(自身を除く): 19444576

約数列:

[1, 2, 4, 8, 16, 181, 362, 724, 1448, 2896, 7079, 14158, 28316, 56632, 113264, 1281299, 2562598, 5125196, 10250392, 20500784]

約数ペア:

[(1, 20500784), (2, 10250392), (4, 5125196), (8, 2562598), (16, 1281299), (181, 113264), (362, 56632), (724, 28316), (1448, 14158), (2896, 7079)]