27878455

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{197}}^1$

素因数の和:327

約数の個数: 32

約数和(自身を含む): 38320128

約数和(自身を除く): 10441673

約数列:

[1, 5, 11, 31, 55, 83, 155, 197, 341, 415, 913, 985, 1705, 2167, 2573, 4565, 6107, 10835, 12865, 16351, 28303, 30535, 67177, 81755, 141515, 179861, 335885, 506881, 899305, 2534405, 5575691, 27878455]

約数ペア:

[(1, 27878455), (5, 5575691), (11, 2534405), (31, 899305), (55, 506881), (83, 335885), (155, 179861), (197, 141515), (341, 81755), (415, 67177), (913, 30535), (985, 28303), (1705, 16351), (2167, 12865), (2573, 10835), (4565, 6107)]