80819320

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{42989}}^1$

素因数の和:43047

約数の個数: 32

約数和(自身を含む): 185716800

約数和(自身を除く): 104897480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 42989, 85978, 171956, 214945, 343912, 429890, 859780, 1719560, 2020483, 4040966, 8081932, 10102415, 16163864, 20204830, 40409660, 80819320]

約数ペア:

[(1, 80819320), (2, 40409660), (4, 20204830), (5, 16163864), (8, 10102415), (10, 8081932), (20, 4040966), (40, 2020483), (47, 1719560), (94, 859780), (188, 429890), (235, 343912), (376, 214945), (470, 171956), (940, 85978), (1880, 42989)]