79779280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1307}}^1$

素因数の和:1436

約数の個数: 80

約数和(自身を含む): 214093440

約数和(自身を除く): 134314160

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, 1307, 1526, 1744, 2180, 2614, 3052, 3815, 4360, 5228, 6104, 6535, 7630, 8720, 9149, 10456, 12208, 13070, 15260, 18298, 20912, 26140, 30520, 36596, 45745, 52280, 61040, 73192, 91490, 104560, 142463, 146384, 182980, 284926, 365960, 569852, 712315, 731920, 997241, 1139704, 1424630, 1994482, 2279408, 2849260, 3988964, 4986205, 5698520, 7977928, 9972410, 11397040, 15955856, 19944820, 39889640, 79779280]

約数ペア:

[(1, 79779280), (2, 39889640), (4, 19944820), (5, 15955856), (7, 11397040), (8, 9972410), (10, 7977928), (14, 5698520), (16, 4986205), (20, 3988964), (28, 2849260), (35, 2279408), (40, 1994482), (56, 1424630), (70, 1139704), (80, 997241), (109, 731920), (112, 712315), (140, 569852), (218, 365960), (280, 284926), (436, 182980), (545, 146384), (560, 142463), (763, 104560), (872, 91490), (1090, 73192), (1307, 61040), (1526, 52280), (1744, 45745), (2180, 36596), (2614, 30520), (3052, 26140), (3815, 20912), (4360, 18298), (5228, 15260), (6104, 13070), (6535, 12208), (7630, 10456), (8720, 9149)]