12821665780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{756887}}^1$

素因数の和:756925

約数の個数: 72

約数和(自身を含む): 33823810944

約数和(自身を除く): 21002145164

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 121, 140, 154, 220, 242, 308, 385, 484, 605, 770, 847, 1210, 1540, 1694, 2420, 3388, 4235, 8470, 16940, 756887, 1513774, 3027548, 3784435, 5298209, 7568870, 8325757, 10596418, 15137740, 16651514, 21192836, 26491045, 33303028, 41628785, 52982090, 58280299, 83257570, 91583327, 105964180, 116560598, 166515140, 183166654, 233121196, 291401495, 366333308, 457916635, 582802990, 641083289, 915833270, 1165605980, 1282166578, 1831666540, 2564333156, 3205416445, 6410832890, 12821665780]

約数ペア:

[(1, 12821665780), (2, 6410832890), (4, 3205416445), (5, 2564333156), (7, 1831666540), (10, 1282166578), (11, 1165605980), (14, 915833270), (20, 641083289), (22, 582802990), (28, 457916635), (35, 366333308), (44, 291401495), (55, 233121196), (70, 183166654), (77, 166515140), (110, 116560598), (121, 105964180), (140, 91583327), (154, 83257570), (220, 58280299), (242, 52982090), (308, 41628785), (385, 33303028), (484, 26491045), (605, 21192836), (770, 16651514), (847, 15137740), (1210, 10596418), (1540, 8325757), (1694, 7568870), (2420, 5298209), (3388, 3784435), (4235, 3027548), (8470, 1513774), (16940, 756887)]