81559618

素因数分解:

$2^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{271}}^1$

素因数の和:407

約数の個数: 48

約数和(自身を含む): 148466304

約数和(自身を除く): 66906686

約数列:

[1, 2, 7, 14, 37, 49, 74, 83, 98, 166, 259, 271, 518, 542, 581, 1162, 1813, 1897, 3071, 3626, 3794, 4067, 6142, 8134, 10027, 13279, 20054, 21497, 22493, 26558, 42994, 44986, 70189, 140378, 150479, 157451, 300958, 314902, 491323, 832241, 982646, 1102157, 1664482, 2204314, 5825687, 11651374, 40779809, 81559618]

約数ペア:

[(1, 81559618), (2, 40779809), (7, 11651374), (14, 5825687), (37, 2204314), (49, 1664482), (74, 1102157), (83, 982646), (98, 832241), (166, 491323), (259, 314902), (271, 300958), (518, 157451), (542, 150479), (581, 140378), (1162, 70189), (1813, 44986), (1897, 42994), (3071, 26558), (3626, 22493), (3794, 21497), (4067, 20054), (6142, 13279), (8134, 10027)]