65710280

素因数分解:

$2^3\times 5^1\times {\mathrm{307}}^1\times {\mathrm{5351}}^1$

素因数の和:5669

約数の個数: 32

約数和(自身を含む): 148357440

約数和(自身を除く): 82647160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 307, 614, 1228, 1535, 2456, 3070, 5351, 6140, 10702, 12280, 21404, 26755, 42808, 53510, 107020, 214040, 1642757, 3285514, 6571028, 8213785, 13142056, 16427570, 32855140, 65710280]

約数ペア:

[(1, 65710280), (2, 32855140), (4, 16427570), (5, 13142056), (8, 8213785), (10, 6571028), (20, 3285514), (40, 1642757), (307, 214040), (614, 107020), (1228, 53510), (1535, 42808), (2456, 26755), (3070, 21404), (5351, 12280), (6140, 10702)]