81370016

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{27943}}^1$

素因数の和:27973

約数の個数: 48

約数和(自身を含む): 197172864

約数和(自身を除く): 115802848

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 91, 104, 112, 182, 208, 224, 364, 416, 728, 1456, 2912, 27943, 55886, 111772, 195601, 223544, 363259, 391202, 447088, 726518, 782404, 894176, 1453036, 1564808, 2542813, 2906072, 3129616, 5085626, 5812144, 6259232, 10171252, 11624288, 20342504, 40685008, 81370016]

約数ペア:

[(1, 81370016), (2, 40685008), (4, 20342504), (7, 11624288), (8, 10171252), (13, 6259232), (14, 5812144), (16, 5085626), (26, 3129616), (28, 2906072), (32, 2542813), (52, 1564808), (56, 1453036), (91, 894176), (104, 782404), (112, 726518), (182, 447088), (208, 391202), (224, 363259), (364, 223544), (416, 195601), (728, 111772), (1456, 55886), (2912, 27943)]