1397900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{1997}}^1$

素因数の和:2018

約数の個数: 36

約数和(自身を含む): 3468528

約数和(自身を除く): 2070628

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 350, 700, 1997, 3994, 7988, 9985, 13979, 19970, 27958, 39940, 49925, 55916, 69895, 99850, 139790, 199700, 279580, 349475, 698950, 1397900]

約数ペア:

[(1, 1397900), (2, 698950), (4, 349475), (5, 279580), (7, 199700), (10, 139790), (14, 99850), (20, 69895), (25, 55916), (28, 49925), (35, 39940), (50, 27958), (70, 19970), (100, 13979), (140, 9985), (175, 7988), (350, 3994), (700, 1997)]