18087025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{739}}^1$

素因数の和:849

約数の個数: 24

約数和(自身を含む): 24775200

約数和(自身を除く): 6688175

約数列:

[1, 5, 11, 25, 55, 89, 275, 445, 739, 979, 2225, 3695, 4895, 8129, 18475, 24475, 40645, 65771, 203225, 328855, 723481, 1644275, 3617405, 18087025]

約数ペア:

[(1, 18087025), (5, 3617405), (11, 1644275), (25, 723481), (55, 328855), (89, 203225), (275, 65771), (445, 40645), (739, 24475), (979, 18475), (2225, 8129), (3695, 4895)]