123728080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{2027}}^1$

素因数の和:2156

約数の個数: 80

約数和(自身を含む): 331943040

約数和(自身を除く): 208214960

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, 2027, 2180, 3052, 3815, 4054, 4360, 6104, 7630, 8108, 8720, 10135, 12208, 14189, 15260, 16216, 20270, 28378, 30520, 32432, 40540, 56756, 61040, 70945, 81080, 113512, 141890, 162160, 220943, 227024, 283780, 441886, 567560, 883772, 1104715, 1135120, 1546601, 1767544, 2209430, 3093202, 3535088, 4418860, 6186404, 7733005, 8837720, 12372808, 15466010, 17675440, 24745616, 30932020, 61864040, 123728080]

約数ペア:

[(1, 123728080), (2, 61864040), (4, 30932020), (5, 24745616), (7, 17675440), (8, 15466010), (10, 12372808), (14, 8837720), (16, 7733005), (20, 6186404), (28, 4418860), (35, 3535088), (40, 3093202), (56, 2209430), (70, 1767544), (80, 1546601), (109, 1135120), (112, 1104715), (140, 883772), (218, 567560), (280, 441886), (436, 283780), (545, 227024), (560, 220943), (763, 162160), (872, 141890), (1090, 113512), (1526, 81080), (1744, 70945), (2027, 61040), (2180, 56756), (3052, 40540), (3815, 32432), (4054, 30520), (4360, 28378), (6104, 20270), (7630, 16216), (8108, 15260), (8720, 14189), (10135, 12208)]