172920080

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{21401}}^1$

素因数の和:21515

約数の個数: 40

約数和(自身を含む): 406038744

約数和(自身を除く): 233118664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 1010, 1616, 2020, 4040, 8080, 21401, 42802, 85604, 107005, 171208, 214010, 342416, 428020, 856040, 1712080, 2161501, 4323002, 8646004, 10807505, 17292008, 21615010, 34584016, 43230020, 86460040, 172920080]

約数ペア:

[(1, 172920080), (2, 86460040), (4, 43230020), (5, 34584016), (8, 21615010), (10, 17292008), (16, 10807505), (20, 8646004), (40, 4323002), (80, 2161501), (101, 1712080), (202, 856040), (404, 428020), (505, 342416), (808, 214010), (1010, 171208), (1616, 107005), (2020, 85604), (4040, 42802), (8080, 21401)]