838740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{1997}}^1$

素因数の和:2016

約数の個数: 48

約数和(自身を含む): 2685312

約数和(自身を除く): 1846572

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 1997, 3994, 5991, 7988, 9985, 11982, 13979, 19970, 23964, 27958, 29955, 39940, 41937, 55916, 59910, 69895, 83874, 119820, 139790, 167748, 209685, 279580, 419370, 838740]

約数ペア:

[(1, 838740), (2, 419370), (3, 279580), (4, 209685), (5, 167748), (6, 139790), (7, 119820), (10, 83874), (12, 69895), (14, 59910), (15, 55916), (20, 41937), (21, 39940), (28, 29955), (30, 27958), (35, 23964), (42, 19970), (60, 13979), (70, 11982), (84, 9985), (105, 7988), (140, 5991), (210, 3994), (420, 1997)]