81401572

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{47659}}^1$

素因数の和:47731

約数の個数: 24

約数和(自身を含む): 165475520

約数和(自身を除く): 84073948

約数列:

[1, 2, 4, 7, 14, 28, 61, 122, 244, 427, 854, 1708, 47659, 95318, 190636, 333613, 667226, 1334452, 2907199, 5814398, 11628796, 20350393, 40700786, 81401572]

約数ペア:

[(1, 81401572), (2, 40700786), (4, 20350393), (7, 11628796), (14, 5814398), (28, 2907199), (61, 1334452), (122, 667226), (244, 333613), (427, 190636), (854, 95318), (1708, 47659)]