128374960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{9967}}^1$

素因数の和:10010

約数の個数: 80

約数和(自身を含む): 355977216

約数和(自身を除く): 227602256

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 161, 184, 230, 280, 322, 368, 460, 560, 644, 805, 920, 1288, 1610, 1840, 2576, 3220, 6440, 9967, 12880, 19934, 39868, 49835, 69769, 79736, 99670, 139538, 159472, 199340, 229241, 279076, 348845, 398680, 458482, 558152, 697690, 797360, 916964, 1116304, 1146205, 1395380, 1604687, 1833928, 2292410, 2790760, 3209374, 3667856, 4584820, 5581520, 6418748, 8023435, 9169640, 12837496, 16046870, 18339280, 25674992, 32093740, 64187480, 128374960]

約数ペア:

[(1, 128374960), (2, 64187480), (4, 32093740), (5, 25674992), (7, 18339280), (8, 16046870), (10, 12837496), (14, 9169640), (16, 8023435), (20, 6418748), (23, 5581520), (28, 4584820), (35, 3667856), (40, 3209374), (46, 2790760), (56, 2292410), (70, 1833928), (80, 1604687), (92, 1395380), (112, 1146205), (115, 1116304), (140, 916964), (161, 797360), (184, 697690), (230, 558152), (280, 458482), (322, 398680), (368, 348845), (460, 279076), (560, 229241), (644, 199340), (805, 159472), (920, 139538), (1288, 99670), (1610, 79736), (1840, 69769), (2576, 49835), (3220, 39868), (6440, 19934), (9967, 12880)]