87767440

素因数分解:

$2^4\times 5^1\times {\mathrm{197}}^1\times {\mathrm{5569}}^1$

素因数の和:5779

約数の個数: 40

約数和(自身を含む): 205131960

約数和(自身を除く): 117364520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197, 394, 788, 985, 1576, 1970, 3152, 3940, 5569, 7880, 11138, 15760, 22276, 27845, 44552, 55690, 89104, 111380, 222760, 445520, 1097093, 2194186, 4388372, 5485465, 8776744, 10970930, 17553488, 21941860, 43883720, 87767440]

約数ペア:

[(1, 87767440), (2, 43883720), (4, 21941860), (5, 17553488), (8, 10970930), (10, 8776744), (16, 5485465), (20, 4388372), (40, 2194186), (80, 1097093), (197, 445520), (394, 222760), (788, 111380), (985, 89104), (1576, 55690), (1970, 44552), (3152, 27845), (3940, 22276), (5569, 15760), (7880, 11138)]