1393980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{3319}}^1$

素因数の和:3338

約数の個数: 48

約数和(自身を含む): 4462080

約数和(自身を除く): 3068100

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, 3319, 6638, 9957, 13276, 16595, 19914, 23233, 33190, 39828, 46466, 49785, 66380, 69699, 92932, 99570, 116165, 139398, 199140, 232330, 278796, 348495, 464660, 696990, 1393980]

約数ペア:

[(1, 1393980), (2, 696990), (3, 464660), (4, 348495), (5, 278796), (6, 232330), (7, 199140), (10, 139398), (12, 116165), (14, 99570), (15, 92932), (20, 69699), (21, 66380), (28, 49785), (30, 46466), (35, 39828), (42, 33190), (60, 23233), (70, 19914), (84, 16595), (105, 13276), (140, 9957), (210, 6638), (420, 3319)]