81167856

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{21961}}^1$

素因数の和:21990

約数の個数: 80

約数和(自身を含む): 261435648

約数和(自身を除く): 180267792

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 16, 21, 22, 24, 28, 33, 42, 44, 48, 56, 66, 77, 84, 88, 112, 132, 154, 168, 176, 231, 264, 308, 336, 462, 528, 616, 924, 1232, 1848, 3696, 21961, 43922, 65883, 87844, 131766, 153727, 175688, 241571, 263532, 307454, 351376, 461181, 483142, 527064, 614908, 724713, 922362, 966284, 1054128, 1229816, 1449426, 1690997, 1844724, 1932568, 2459632, 2898852, 3381994, 3689448, 3865136, 5072991, 5797704, 6763988, 7378896, 10145982, 11595408, 13527976, 20291964, 27055952, 40583928, 81167856]

約数ペア:

[(1, 81167856), (2, 40583928), (3, 27055952), (4, 20291964), (6, 13527976), (7, 11595408), (8, 10145982), (11, 7378896), (12, 6763988), (14, 5797704), (16, 5072991), (21, 3865136), (22, 3689448), (24, 3381994), (28, 2898852), (33, 2459632), (42, 1932568), (44, 1844724), (48, 1690997), (56, 1449426), (66, 1229816), (77, 1054128), (84, 966284), (88, 922362), (112, 724713), (132, 614908), (154, 527064), (168, 483142), (176, 461181), (231, 351376), (264, 307454), (308, 263532), (336, 241571), (462, 175688), (528, 153727), (616, 131766), (924, 87844), (1232, 65883), (1848, 43922), (3696, 21961)]