28747480

素因数分解:

$2^3\times 5^1\times {\mathrm{307}}^1\times {\mathrm{2341}}^1$

素因数の和:2659

約数の個数: 32

約数和(自身を含む): 64920240

約数和(自身を除く): 36172760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 307, 614, 1228, 1535, 2341, 2456, 3070, 4682, 6140, 9364, 11705, 12280, 18728, 23410, 46820, 93640, 718687, 1437374, 2874748, 3593435, 5749496, 7186870, 14373740, 28747480]

約数ペア:

[(1, 28747480), (2, 14373740), (4, 7186870), (5, 5749496), (8, 3593435), (10, 2874748), (20, 1437374), (40, 718687), (307, 93640), (614, 46820), (1228, 23410), (1535, 18728), (2341, 12280), (2456, 11705), (3070, 9364), (4682, 6140)]