15980720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{28537}}^1$

素因数の和:28557

約数の個数: 40

約数和(自身を含む): 42464544

約数和(自身を除く): 26483824

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 28537, 57074, 114148, 142685, 199759, 228296, 285370, 399518, 456592, 570740, 799036, 998795, 1141480, 1598072, 1997590, 2282960, 3196144, 3995180, 7990360, 15980720]

約数ペア:

[(1, 15980720), (2, 7990360), (4, 3995180), (5, 3196144), (7, 2282960), (8, 1997590), (10, 1598072), (14, 1141480), (16, 998795), (20, 799036), (28, 570740), (35, 456592), (40, 399518), (56, 285370), (70, 228296), (80, 199759), (112, 142685), (140, 114148), (280, 57074), (560, 28537)]