81572176

素因数分解:

$2^4\times 7^1\times {\mathrm{157}}^1\times {\mathrm{4639}}^1$

素因数の和:4811

約数の個数: 40

約数和(自身を含む): 181813760

約数和(自身を除く): 100241584

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 157, 314, 628, 1099, 1256, 2198, 2512, 4396, 4639, 8792, 9278, 17584, 18556, 32473, 37112, 64946, 74224, 129892, 259784, 519568, 728323, 1456646, 2913292, 5098261, 5826584, 10196522, 11653168, 20393044, 40786088, 81572176]

約数ペア:

[(1, 81572176), (2, 40786088), (4, 20393044), (7, 11653168), (8, 10196522), (14, 5826584), (16, 5098261), (28, 2913292), (56, 1456646), (112, 728323), (157, 519568), (314, 259784), (628, 129892), (1099, 74224), (1256, 64946), (2198, 37112), (2512, 32473), (4396, 18556), (4639, 17584), (8792, 9278)]