65616280

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{38149}}^1$

素因数の和:38203

約数の個数: 32

約数和(自身を含む): 151074000

約数和(自身を除く): 85457720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 38149, 76298, 152596, 190745, 305192, 381490, 762980, 1525960, 1640407, 3280814, 6561628, 8202035, 13123256, 16404070, 32808140, 65616280]

約数ペア:

[(1, 65616280), (2, 32808140), (4, 16404070), (5, 13123256), (8, 8202035), (10, 6561628), (20, 3280814), (40, 1640407), (43, 1525960), (86, 762980), (172, 381490), (215, 305192), (344, 190745), (430, 152596), (860, 76298), (1720, 38149)]