26528845

素因数分解:

$5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 40219200

約数和(自身を除く): 13690355

約数列:

[1, 5, 7, 19, 35, 41, 49, 95, 133, 139, 205, 245, 287, 665, 695, 779, 931, 973, 1435, 2009, 2641, 3895, 4655, 4865, 5453, 5699, 6811, 10045, 13205, 18487, 27265, 28495, 34055, 38171, 39893, 92435, 108281, 129409, 190855, 199465, 279251, 541405, 647045, 757967, 1396255, 3789835, 5305769, 26528845]

約数ペア:

[(1, 26528845), (5, 5305769), (7, 3789835), (19, 1396255), (35, 757967), (41, 647045), (49, 541405), (95, 279251), (133, 199465), (139, 190855), (205, 129409), (245, 108281), (287, 92435), (665, 39893), (695, 38171), (779, 34055), (931, 28495), (973, 27265), (1435, 18487), (2009, 13205), (2641, 10045), (3895, 6811), (4655, 5699), (4865, 5453)]