68027440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{439}}^1$

素因数の和:614

約数の個数: 80

約数和(自身を含む): 171864000

約数和(自身を除く): 103836560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 149, 208, 260, 298, 439, 520, 596, 745, 878, 1040, 1192, 1490, 1756, 1937, 2195, 2384, 2980, 3512, 3874, 4390, 5707, 5960, 7024, 7748, 8780, 9685, 11414, 11920, 15496, 17560, 19370, 22828, 28535, 30992, 35120, 38740, 45656, 57070, 65411, 77480, 91312, 114140, 130822, 154960, 228280, 261644, 327055, 456560, 523288, 654110, 850343, 1046576, 1308220, 1700686, 2616440, 3401372, 4251715, 5232880, 6802744, 8503430, 13605488, 17006860, 34013720, 68027440]

約数ペア:

[(1, 68027440), (2, 34013720), (4, 17006860), (5, 13605488), (8, 8503430), (10, 6802744), (13, 5232880), (16, 4251715), (20, 3401372), (26, 2616440), (40, 1700686), (52, 1308220), (65, 1046576), (80, 850343), (104, 654110), (130, 523288), (149, 456560), (208, 327055), (260, 261644), (298, 228280), (439, 154960), (520, 130822), (596, 114140), (745, 91312), (878, 77480), (1040, 65411), (1192, 57070), (1490, 45656), (1756, 38740), (1937, 35120), (2195, 30992), (2384, 28535), (2980, 22828), (3512, 19370), (3874, 17560), (4390, 15496), (5707, 11920), (5960, 11414), (7024, 9685), (7748, 8780)]