28008345

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^2\times {\mathrm{67}}^1$

素因数の和:166

約数の個数: 48

約数和(自身を含む): 48617280

約数和(自身を除く): 20608935

約数列:

[1, 3, 5, 15, 29, 31, 67, 87, 93, 145, 155, 201, 335, 435, 465, 899, 961, 1005, 1943, 2077, 2697, 2883, 4495, 4805, 5829, 6231, 9715, 10385, 13485, 14415, 27869, 29145, 31155, 60233, 64387, 83607, 139345, 180699, 193161, 301165, 321935, 418035, 903495, 965805, 1867223, 5601669, 9336115, 28008345]

約数ペア:

[(1, 28008345), (3, 9336115), (5, 5601669), (15, 1867223), (29, 965805), (31, 903495), (67, 418035), (87, 321935), (93, 301165), (145, 193161), (155, 180699), (201, 139345), (335, 83607), (435, 64387), (465, 60233), (899, 31155), (961, 29145), (1005, 27869), (1943, 14415), (2077, 13485), (2697, 10385), (2883, 9715), (4495, 6231), (4805, 5829)]