1289279038

素因数分解:

$2^1\times {\mathrm{389}}^1\times {\mathrm{829}}^1\times {\mathrm{1999}}^1$

素因数の和:3219

約数の個数: 16

約数和(自身を含む): 1942200000

約数和(自身を除く): 652920962

約数列:

[1, 2, 389, 778, 829, 1658, 1999, 3998, 322481, 644962, 777611, 1555222, 1657171, 3314342, 644639519, 1289279038]

約数ペア:

[(1, 1289279038), (2, 644639519), (389, 3314342), (778, 1657171), (829, 1555222), (1658, 777611), (1999, 644962), (3998, 322481)]