87578320

素因数分解:

$2^4\times 5^1\times {\mathrm{197}}^1\times {\mathrm{5557}}^1$

素因数の和:5767

約数の個数: 40

約数和(自身を含む): 204690024

約数和(自身を除く): 117111704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197, 394, 788, 985, 1576, 1970, 3152, 3940, 5557, 7880, 11114, 15760, 22228, 27785, 44456, 55570, 88912, 111140, 222280, 444560, 1094729, 2189458, 4378916, 5473645, 8757832, 10947290, 17515664, 21894580, 43789160, 87578320]

約数ペア:

[(1, 87578320), (2, 43789160), (4, 21894580), (5, 17515664), (8, 10947290), (10, 8757832), (16, 5473645), (20, 4378916), (40, 2189458), (80, 1094729), (197, 444560), (394, 222280), (788, 111140), (985, 88912), (1576, 55570), (1970, 44456), (3152, 27785), (3940, 22228), (5557, 15760), (7880, 11114)]