128122960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{2099}}^1$

素因数の和:2228

約数の個数: 80

約数和(自身を含む): 343728000

約数和(自身を除く): 215605040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 109, 112, 140, 218, 280, 436, 545, 560, 763, 872, 1090, 1526, 1744, 2099, 2180, 3052, 3815, 4198, 4360, 6104, 7630, 8396, 8720, 10495, 12208, 14693, 15260, 16792, 20990, 29386, 30520, 33584, 41980, 58772, 61040, 73465, 83960, 117544, 146930, 167920, 228791, 235088, 293860, 457582, 587720, 915164, 1143955, 1175440, 1601537, 1830328, 2287910, 3203074, 3660656, 4575820, 6406148, 8007685, 9151640, 12812296, 16015370, 18303280, 25624592, 32030740, 64061480, 128122960]

約数ペア:

[(1, 128122960), (2, 64061480), (4, 32030740), (5, 25624592), (7, 18303280), (8, 16015370), (10, 12812296), (14, 9151640), (16, 8007685), (20, 6406148), (28, 4575820), (35, 3660656), (40, 3203074), (56, 2287910), (70, 1830328), (80, 1601537), (109, 1175440), (112, 1143955), (140, 915164), (218, 587720), (280, 457582), (436, 293860), (545, 235088), (560, 228791), (763, 167920), (872, 146930), (1090, 117544), (1526, 83960), (1744, 73465), (2099, 61040), (2180, 58772), (3052, 41980), (3815, 33584), (4198, 30520), (4360, 29386), (6104, 20990), (7630, 16792), (8396, 15260), (8720, 14693), (10495, 12208)]