18278005

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1\times {\mathrm{547}}^1$

素因数の和:756

約数の個数: 16

約数和(自身を含む): 22647744

約数和(自身を除く): 4369739

約数列:

[1, 5, 41, 163, 205, 547, 815, 2735, 6683, 22427, 33415, 89161, 112135, 445805, 3655601, 18278005]

約数ペア:

[(1, 18278005), (5, 3655601), (41, 445805), (163, 112135), (205, 89161), (547, 33415), (815, 22427), (2735, 6683)]