1388302520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{17627}}^1$

素因数の和:17828

約数の個数: 64

約数和(自身を含む): 3426883200

約数和(自身を除く): 2038580680

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 179, 220, 358, 440, 716, 895, 1432, 1790, 1969, 3580, 3938, 7160, 7876, 9845, 15752, 17627, 19690, 35254, 39380, 70508, 78760, 88135, 141016, 176270, 193897, 352540, 387794, 705080, 775588, 969485, 1551176, 1938970, 3155233, 3877940, 6310466, 7755880, 12620932, 15776165, 25241864, 31552330, 34707563, 63104660, 69415126, 126209320, 138830252, 173537815, 277660504, 347075630, 694151260, 1388302520]

約数ペア:

[(1, 1388302520), (2, 694151260), (4, 347075630), (5, 277660504), (8, 173537815), (10, 138830252), (11, 126209320), (20, 69415126), (22, 63104660), (40, 34707563), (44, 31552330), (55, 25241864), (88, 15776165), (110, 12620932), (179, 7755880), (220, 6310466), (358, 3877940), (440, 3155233), (716, 1938970), (895, 1551176), (1432, 969485), (1790, 775588), (1969, 705080), (3580, 387794), (3938, 352540), (7160, 193897), (7876, 176270), (9845, 141016), (15752, 88135), (17627, 78760), (19690, 70508), (35254, 39380)]