20199743480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{72141941}}^1$

素因数の和:72141959

約数の個数: 32

約数和(自身を含む): 51942198240

約数和(自身を除く): 31742454760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 72141941, 144283882, 288567764, 360709705, 504993587, 577135528, 721419410, 1009987174, 1442838820, 2019974348, 2524967935, 2885677640, 4039948696, 5049935870, 10099871740, 20199743480]

約数ペア:

[(1, 20199743480), (2, 10099871740), (4, 5049935870), (5, 4039948696), (7, 2885677640), (8, 2524967935), (10, 2019974348), (14, 1442838820), (20, 1009987174), (28, 721419410), (35, 577135528), (40, 504993587), (56, 360709705), (70, 288567764), (140, 144283882), (280, 72141941)]