81989488

素因数分解:

$2^4\times 7^1\times {\mathrm{193}}^1\times {\mathrm{3793}}^1$

素因数の和:4001

約数の個数: 40

約数和(自身を含む): 182536928

約数和(自身を除く): 100547440

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 193, 386, 772, 1351, 1544, 2702, 3088, 3793, 5404, 7586, 10808, 15172, 21616, 26551, 30344, 53102, 60688, 106204, 212408, 424816, 732049, 1464098, 2928196, 5124343, 5856392, 10248686, 11712784, 20497372, 40994744, 81989488]

約数ペア:

[(1, 81989488), (2, 40994744), (4, 20497372), (7, 11712784), (8, 10248686), (14, 5856392), (16, 5124343), (28, 2928196), (56, 1464098), (112, 732049), (193, 424816), (386, 212408), (772, 106204), (1351, 60688), (1544, 53102), (2702, 30344), (3088, 26551), (3793, 21616), (5404, 15172), (7586, 10808)]