855477320

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{156109}}^1$

素因数の和:156257

約数の個数: 32

約数和(自身を含む): 1938886200

約数和(自身を除く): 1083408880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 5480, 156109, 312218, 624436, 780545, 1248872, 1561090, 3122180, 6244360, 21386933, 42773866, 85547732, 106934665, 171095464, 213869330, 427738660, 855477320]

約数ペア:

[(1, 855477320), (2, 427738660), (4, 213869330), (5, 171095464), (8, 106934665), (10, 85547732), (20, 42773866), (40, 21386933), (137, 6244360), (274, 3122180), (548, 1561090), (685, 1248872), (1096, 780545), (1370, 624436), (2740, 312218), (5480, 156109)]