80848720

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{157}}^2$

素因数の和:368

約数の個数: 60

約数和(自身を含む): 193792284

約数和(自身を除く): 112943564

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 157, 164, 205, 314, 328, 410, 628, 656, 785, 820, 1256, 1570, 1640, 2512, 3140, 3280, 6280, 6437, 12560, 12874, 24649, 25748, 32185, 49298, 51496, 64370, 98596, 102992, 123245, 128740, 197192, 246490, 257480, 394384, 492980, 514960, 985960, 1010609, 1971920, 2021218, 4042436, 5053045, 8084872, 10106090, 16169744, 20212180, 40424360, 80848720]

約数ペア:

[(1, 80848720), (2, 40424360), (4, 20212180), (5, 16169744), (8, 10106090), (10, 8084872), (16, 5053045), (20, 4042436), (40, 2021218), (41, 1971920), (80, 1010609), (82, 985960), (157, 514960), (164, 492980), (205, 394384), (314, 257480), (328, 246490), (410, 197192), (628, 128740), (656, 123245), (785, 102992), (820, 98596), (1256, 64370), (1570, 51496), (1640, 49298), (2512, 32185), (3140, 25748), (3280, 24649), (6280, 12874), (6437, 12560)]