1388268

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{787}}^1$

素因数の和:811

約数の個数: 54

約数和(自身を含む): 4087356

約数和(自身を除く): 2699088

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 84, 98, 126, 147, 196, 252, 294, 441, 588, 787, 882, 1574, 1764, 2361, 3148, 4722, 5509, 7083, 9444, 11018, 14166, 16527, 22036, 28332, 33054, 38563, 49581, 66108, 77126, 99162, 115689, 154252, 198324, 231378, 347067, 462756, 694134, 1388268]

約数ペア:

[(1, 1388268), (2, 694134), (3, 462756), (4, 347067), (6, 231378), (7, 198324), (9, 154252), (12, 115689), (14, 99162), (18, 77126), (21, 66108), (28, 49581), (36, 38563), (42, 33054), (49, 28332), (63, 22036), (84, 16527), (98, 14166), (126, 11018), (147, 9444), (196, 7083), (252, 5509), (294, 4722), (441, 3148), (588, 2361), (787, 1764), (882, 1574)]