20548112

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{443}}^1$

素因数の和:687

約数の個数: 40

約数和(自身を含む): 43163904

約数和(自身を除く): 22615792

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 223, 443, 446, 886, 892, 1772, 1784, 2899, 3544, 3568, 5759, 5798, 7088, 11518, 11596, 23036, 23192, 46072, 46384, 92144, 98789, 197578, 395156, 790312, 1284257, 1580624, 2568514, 5137028, 10274056, 20548112]

約数ペア:

[(1, 20548112), (2, 10274056), (4, 5137028), (8, 2568514), (13, 1580624), (16, 1284257), (26, 790312), (52, 395156), (104, 197578), (208, 98789), (223, 92144), (443, 46384), (446, 46072), (886, 23192), (892, 23036), (1772, 11596), (1784, 11518), (2899, 7088), (3544, 5798), (3568, 5759)]