28387865

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{22441}}^1$

素因数の和:22480

約数の個数: 16

約数和(自身を含む): 38779776

約数和(自身を除く): 10391911

約数列:

[1, 5, 11, 23, 55, 115, 253, 1265, 22441, 112205, 246851, 516143, 1234255, 2580715, 5677573, 28387865]

約数ペア:

[(1, 28387865), (5, 5677573), (11, 2580715), (23, 1234255), (55, 516143), (115, 246851), (253, 112205), (1265, 22441)]