81187400

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{57991}}^1$

素因数の和:58014

約数の個数: 48

約数和(自身を含む): 215730240

約数和(自身を除く): 134542840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 140, 175, 200, 280, 350, 700, 1400, 57991, 115982, 231964, 289955, 405937, 463928, 579910, 811874, 1159820, 1449775, 1623748, 2029685, 2319640, 2899550, 3247496, 4059370, 5799100, 8118740, 10148425, 11598200, 16237480, 20296850, 40593700, 81187400]

約数ペア:

[(1, 81187400), (2, 40593700), (4, 20296850), (5, 16237480), (7, 11598200), (8, 10148425), (10, 8118740), (14, 5799100), (20, 4059370), (25, 3247496), (28, 2899550), (35, 2319640), (40, 2029685), (50, 1623748), (56, 1449775), (70, 1159820), (100, 811874), (140, 579910), (175, 463928), (200, 405937), (280, 289955), (350, 231964), (700, 115982), (1400, 57991)]