81356464

素因数分解:

$2^4\times 7^2\times {\mathrm{41}}^1\times {\mathrm{2531}}^1$

素因数の和:2594

約数の個数: 60

約数和(自身を含む): 187909848

約数和(自身を除く): 106553384

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 41, 49, 56, 82, 98, 112, 164, 196, 287, 328, 392, 574, 656, 784, 1148, 2009, 2296, 2531, 4018, 4592, 5062, 8036, 10124, 16072, 17717, 20248, 32144, 35434, 40496, 70868, 103771, 124019, 141736, 207542, 248038, 283472, 415084, 496076, 726397, 830168, 992152, 1452794, 1660336, 1984304, 2905588, 5084779, 5811176, 10169558, 11622352, 20339116, 40678232, 81356464]

約数ペア:

[(1, 81356464), (2, 40678232), (4, 20339116), (7, 11622352), (8, 10169558), (14, 5811176), (16, 5084779), (28, 2905588), (41, 1984304), (49, 1660336), (56, 1452794), (82, 992152), (98, 830168), (112, 726397), (164, 496076), (196, 415084), (287, 283472), (328, 248038), (392, 207542), (574, 141736), (656, 124019), (784, 103771), (1148, 70868), (2009, 40496), (2296, 35434), (2531, 32144), (4018, 20248), (4592, 17717), (5062, 16072), (8036, 10124)]