1276660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{829}}^1$

素因数の和:856

約数の個数: 48

約数和(自身を含む): 3346560

約数和(自身を除く): 2069900

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 829, 1540, 1658, 3316, 4145, 5803, 8290, 9119, 11606, 16580, 18238, 23212, 29015, 36476, 45595, 58030, 63833, 91190, 116060, 127666, 182380, 255332, 319165, 638330, 1276660]

約数ペア:

[(1, 1276660), (2, 638330), (4, 319165), (5, 255332), (7, 182380), (10, 127666), (11, 116060), (14, 91190), (20, 63833), (22, 58030), (28, 45595), (35, 36476), (44, 29015), (55, 23212), (70, 18238), (77, 16580), (110, 11606), (140, 9119), (154, 8290), (220, 5803), (308, 4145), (385, 3316), (770, 1658), (829, 1540)]