1688820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{4021}}^1$

素因数の和:4040

約数の個数: 48

約数和(自身を含む): 5405568

約数和(自身を除く): 3716748

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, 4021, 8042, 12063, 16084, 20105, 24126, 28147, 40210, 48252, 56294, 60315, 80420, 84441, 112588, 120630, 140735, 168882, 241260, 281470, 337764, 422205, 562940, 844410, 1688820]

約数ペア:

[(1, 1688820), (2, 844410), (3, 562940), (4, 422205), (5, 337764), (6, 281470), (7, 241260), (10, 168882), (12, 140735), (14, 120630), (15, 112588), (20, 84441), (21, 80420), (28, 60315), (30, 56294), (35, 48252), (42, 40210), (60, 28147), (70, 24126), (84, 20105), (105, 16084), (140, 12063), (210, 8042), (420, 4021)]