81219824

素因数分解:

$2^4\times 7^1\times {\mathrm{109}}^1\times {\mathrm{6653}}^1$

素因数の和:6777

約数の個数: 40

約数和(自身を含む): 181521120

約数和(自身を除く): 100301296

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 109, 112, 218, 436, 763, 872, 1526, 1744, 3052, 6104, 6653, 12208, 13306, 26612, 46571, 53224, 93142, 106448, 186284, 372568, 725177, 745136, 1450354, 2900708, 5076239, 5801416, 10152478, 11602832, 20304956, 40609912, 81219824]

約数ペア:

[(1, 81219824), (2, 40609912), (4, 20304956), (7, 11602832), (8, 10152478), (14, 5801416), (16, 5076239), (28, 2900708), (56, 1450354), (109, 745136), (112, 725177), (218, 372568), (436, 186284), (763, 106448), (872, 93142), (1526, 53224), (1744, 46571), (3052, 26612), (6104, 13306), (6653, 12208)]