857640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{1021}}^1$

素因数の和:1042

約数の個数: 64

約数和(自身を含む): 2943360

約数和(自身を除く): 2085720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 1021, 2042, 3063, 4084, 5105, 6126, 7147, 8168, 10210, 12252, 14294, 15315, 20420, 21441, 24504, 28588, 30630, 35735, 40840, 42882, 57176, 61260, 71470, 85764, 107205, 122520, 142940, 171528, 214410, 285880, 428820, 857640]

約数ペア:

[(1, 857640), (2, 428820), (3, 285880), (4, 214410), (5, 171528), (6, 142940), (7, 122520), (8, 107205), (10, 85764), (12, 71470), (14, 61260), (15, 57176), (20, 42882), (21, 40840), (24, 35735), (28, 30630), (30, 28588), (35, 24504), (40, 21441), (42, 20420), (56, 15315), (60, 14294), (70, 12252), (84, 10210), (105, 8168), (120, 7147), (140, 6126), (168, 5105), (210, 4084), (280, 3063), (420, 2042), (840, 1021)]