28997990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{21803}}^1$

素因数の和:21836

約数の個数: 32

約数和(自身を含む): 62795520

約数和(自身を除く): 33797530

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 665, 1330, 21803, 43606, 109015, 152621, 218030, 305242, 414257, 763105, 828514, 1526210, 2071285, 2899799, 4142570, 5799598, 14498995, 28997990]

約数ペア:

[(1, 28997990), (2, 14498995), (5, 5799598), (7, 4142570), (10, 2899799), (14, 2071285), (19, 1526210), (35, 828514), (38, 763105), (70, 414257), (95, 305242), (133, 218030), (190, 152621), (266, 109015), (665, 43606), (1330, 21803)]