28296340

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{19927}}^1$

素因数の和:20007

約数の個数: 24

約数和(自身を含む): 60262272

約数和(自身を除く): 31965932

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 19927, 39854, 79708, 99635, 199270, 398540, 1414817, 2829634, 5659268, 7074085, 14148170, 28296340]

約数ペア:

[(1, 28296340), (2, 14148170), (4, 7074085), (5, 5659268), (10, 2829634), (20, 1414817), (71, 398540), (142, 199270), (284, 99635), (355, 79708), (710, 39854), (1420, 19927)]