128376080

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{32749}}^1$

素因数の和:32776

約数の個数: 60

約数和(自身を含む): 347215500

約数和(自身を除く): 218839420

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 32749, 65498, 130996, 163745, 229243, 261992, 327490, 458486, 523984, 654980, 916972, 1146215, 1309960, 1604701, 1833944, 2292430, 2619920, 3209402, 3667888, 4584860, 6418804, 8023505, 9169720, 12837608, 16047010, 18339440, 25675216, 32094020, 64188040, 128376080]

約数ペア:

[(1, 128376080), (2, 64188040), (4, 32094020), (5, 25675216), (7, 18339440), (8, 16047010), (10, 12837608), (14, 9169720), (16, 8023505), (20, 6418804), (28, 4584860), (35, 3667888), (40, 3209402), (49, 2619920), (56, 2292430), (70, 1833944), (80, 1604701), (98, 1309960), (112, 1146215), (140, 916972), (196, 654980), (245, 523984), (280, 458486), (392, 327490), (490, 261992), (560, 229243), (784, 163745), (980, 130996), (1960, 65498), (3920, 32749)]