15780656

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{22937}}^1$

素因数の和:22988

約数の個数: 20

約数和(自身を含む): 31287432

約数和(自身を除く): 15506776

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 22937, 45874, 91748, 183496, 366992, 986291, 1972582, 3945164, 7890328, 15780656]

約数ペア:

[(1, 15780656), (2, 7890328), (4, 3945164), (8, 1972582), (16, 986291), (43, 366992), (86, 183496), (172, 91748), (344, 45874), (688, 22937)]