28218785

素因数分解:

$5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{9059}}^1$

素因数の和:9160

約数の個数: 16

約数和(自身を含む): 39139200

約数和(自身を除く): 10920415

約数列:

[1, 5, 7, 35, 89, 445, 623, 3115, 9059, 45295, 63413, 317065, 806251, 4031255, 5643757, 28218785]

約数ペア:

[(1, 28218785), (5, 5643757), (7, 4031255), (35, 806251), (89, 317065), (445, 63413), (623, 45295), (3115, 9059)]