21920320

素因数分解:

$2^6\times 5^1\times {\mathrm{68501}}^1$

素因数の和:68518

約数の個数: 28

約数和(自身を含む): 52198524

約数和(自身を除く): 30278204

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 68501, 137002, 274004, 342505, 548008, 685010, 1096016, 1370020, 2192032, 2740040, 4384064, 5480080, 10960160, 21920320]

約数ペア:

[(1, 21920320), (2, 10960160), (4, 5480080), (5, 4384064), (8, 2740040), (10, 2192032), (16, 1370020), (20, 1096016), (32, 685010), (40, 548008), (64, 342505), (80, 274004), (160, 137002), (320, 68501)]