81663344

素因数分解:

$2^4\times 7^1\times {\mathrm{103}}^1\times {\mathrm{7079}}^1$

素因数の和:7197

約数の個数: 40

約数和(自身を含む): 182607360

約数和(自身を除く): 100944016

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 103, 112, 206, 412, 721, 824, 1442, 1648, 2884, 5768, 7079, 11536, 14158, 28316, 49553, 56632, 99106, 113264, 198212, 396424, 729137, 792848, 1458274, 2916548, 5103959, 5833096, 10207918, 11666192, 20415836, 40831672, 81663344]

約数ペア:

[(1, 81663344), (2, 40831672), (4, 20415836), (7, 11666192), (8, 10207918), (14, 5833096), (16, 5103959), (28, 2916548), (56, 1458274), (103, 792848), (112, 729137), (206, 396424), (412, 198212), (721, 113264), (824, 99106), (1442, 56632), (1648, 49553), (2884, 28316), (5768, 14158), (7079, 11536)]