1998889690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{1103}}^1\times {\mathrm{25889}}^1$

素因数の和:27006

約数の個数: 32

約数和(自身を含む): 4115888640

約数和(自身を除く): 2116998950

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 1103, 2206, 5515, 7721, 11030, 15442, 25889, 38605, 51778, 77210, 129445, 181223, 258890, 362446, 906115, 1812230, 28555567, 57111134, 142777835, 199888969, 285555670, 399777938, 999444845, 1998889690]

約数ペア:

[(1, 1998889690), (2, 999444845), (5, 399777938), (7, 285555670), (10, 199888969), (14, 142777835), (35, 57111134), (70, 28555567), (1103, 1812230), (2206, 906115), (5515, 362446), (7721, 258890), (11030, 181223), (15442, 129445), (25889, 77210), (38605, 51778)]