81239544

素因数分解:

$2^3\times 3^3\times {\mathrm{569}}^1\times {\mathrm{661}}^1$

素因数の和:1245

約数の個数: 64

約数和(自身を含む): 226404000

約数和(自身を除く): 145164456

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 216, 569, 661, 1138, 1322, 1707, 1983, 2276, 2644, 3414, 3966, 4552, 5121, 5288, 5949, 6828, 7932, 10242, 11898, 13656, 15363, 15864, 17847, 20484, 23796, 30726, 35694, 40968, 47592, 61452, 71388, 122904, 142776, 376109, 752218, 1128327, 1504436, 2256654, 3008872, 3384981, 4513308, 6769962, 9026616, 10154943, 13539924, 20309886, 27079848, 40619772, 81239544]

約数ペア:

[(1, 81239544), (2, 40619772), (3, 27079848), (4, 20309886), (6, 13539924), (8, 10154943), (9, 9026616), (12, 6769962), (18, 4513308), (24, 3384981), (27, 3008872), (36, 2256654), (54, 1504436), (72, 1128327), (108, 752218), (216, 376109), (569, 142776), (661, 122904), (1138, 71388), (1322, 61452), (1707, 47592), (1983, 40968), (2276, 35694), (2644, 30726), (3414, 23796), (3966, 20484), (4552, 17847), (5121, 15864), (5288, 15363), (5949, 13656), (6828, 11898), (7932, 10242)]