80425840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{91393}}^1$

素因数の和:91417

約数の個数: 40

約数和(自身を含む): 203991408

約数和(自身を除く): 123565568

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 91393, 182786, 365572, 456965, 731144, 913930, 1005323, 1462288, 1827860, 2010646, 3655720, 4021292, 5026615, 7311440, 8042584, 10053230, 16085168, 20106460, 40212920, 80425840]

約数ペア:

[(1, 80425840), (2, 40212920), (4, 20106460), (5, 16085168), (8, 10053230), (10, 8042584), (11, 7311440), (16, 5026615), (20, 4021292), (22, 3655720), (40, 2010646), (44, 1827860), (55, 1462288), (80, 1005323), (88, 913930), (110, 731144), (176, 456965), (220, 365572), (440, 182786), (880, 91393)]