28916020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{206543}}^1$

素因数の和:206559

約数の個数: 24

約数和(自身を含む): 69398784

約数和(自身を除く): 40482764

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 206543, 413086, 826172, 1032715, 1445801, 2065430, 2891602, 4130860, 5783204, 7229005, 14458010, 28916020]

約数ペア:

[(1, 28916020), (2, 14458010), (4, 7229005), (5, 5783204), (7, 4130860), (10, 2891602), (14, 2065430), (20, 1445801), (28, 1032715), (35, 826172), (70, 413086), (140, 206543)]