81279828

素因数分解:

$2^2\times 3^3\times 7^2\times {\mathrm{15359}}^1$

素因数の和:15386

約数の個数: 72

約数和(自身を含む): 245145600

約数和(自身を除く): 163865772

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 49, 54, 63, 84, 98, 108, 126, 147, 189, 196, 252, 294, 378, 441, 588, 756, 882, 1323, 1764, 2646, 5292, 15359, 30718, 46077, 61436, 92154, 107513, 138231, 184308, 215026, 276462, 322539, 414693, 430052, 552924, 645078, 752591, 829386, 967617, 1290156, 1505182, 1658772, 1935234, 2257773, 2902851, 3010364, 3870468, 4515546, 5805702, 6773319, 9031092, 11611404, 13546638, 20319957, 27093276, 40639914, 81279828]

約数ペア:

[(1, 81279828), (2, 40639914), (3, 27093276), (4, 20319957), (6, 13546638), (7, 11611404), (9, 9031092), (12, 6773319), (14, 5805702), (18, 4515546), (21, 3870468), (27, 3010364), (28, 2902851), (36, 2257773), (42, 1935234), (49, 1658772), (54, 1505182), (63, 1290156), (84, 967617), (98, 829386), (108, 752591), (126, 645078), (147, 552924), (189, 430052), (196, 414693), (252, 322539), (294, 276462), (378, 215026), (441, 184308), (588, 138231), (756, 107513), (882, 92154), (1323, 61436), (1764, 46077), (2646, 30718), (5292, 15359)]