990470001020

素因数分解:

$2^2\times 5^1\times {\mathrm{49523500051}}^1$

素因数の和:49523500060

約数の個数: 12

約数和(自身を含む): 2079987002184

約数和(自身を除く): 1089517001164

約数列:

[1, 2, 4, 5, 10, 20, 49523500051, 99047000102, 198094000204, 247617500255, 495235000510, 990470001020]

約数ペア:

[(1, 990470001020), (2, 495235000510), (4, 247617500255), (5, 198094000204), (10, 99047000102), (20, 49523500051)]