261812

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:131

約数の個数: 24

約数和(自身を含む): 494760

約数和(自身を除く): 232948

約数列:

[1, 2, 4, 29, 37, 58, 61, 74, 116, 122, 148, 244, 1073, 1769, 2146, 2257, 3538, 4292, 4514, 7076, 9028, 65453, 130906, 261812]

約数ペア:

[(1, 261812), (2, 130906), (4, 65453), (29, 9028), (37, 7076), (58, 4514), (61, 4292), (74, 3538), (116, 2257), (122, 2146), (148, 1769), (244, 1073)]