20420710

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{25849}}^1$

素因数の和:25935

約数の個数: 16

約数和(自身を含む): 37224000

約数和(自身を除く): 16803290

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 25849, 51698, 129245, 258490, 2042071, 4084142, 10210355, 20420710]

約数ペア:

[(1, 20420710), (2, 10210355), (5, 4084142), (10, 2042071), (79, 258490), (158, 129245), (395, 51698), (790, 25849)]