28652215

素因数分解:

$5^1\times {\mathrm{31}}^2\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:223

約数の個数: 24

約数和(自身を含む): 36462960

約数和(自身を除く): 7810745

約数列:

[1, 5, 31, 67, 89, 155, 335, 445, 961, 2077, 2759, 4805, 5963, 10385, 13795, 29815, 64387, 85529, 184853, 321935, 427645, 924265, 5730443, 28652215]

約数ペア:

[(1, 28652215), (5, 5730443), (31, 924265), (67, 427645), (89, 321935), (155, 184853), (335, 85529), (445, 64387), (961, 29815), (2077, 13795), (2759, 10385), (4805, 5963)]