20681034520

素因数分解:

$2^3\times 5^1\times {\mathrm{941}}^1\times {\mathrm{549443}}^1$

素因数の和:550395

約数の個数: 32

約数和(自身を含む): 46581862320

約数和(自身を除く): 25900827800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 941, 1882, 3764, 4705, 7528, 9410, 18820, 37640, 549443, 1098886, 2197772, 2747215, 4395544, 5494430, 10988860, 21977720, 517025863, 1034051726, 2068103452, 2585129315, 4136206904, 5170258630, 10340517260, 20681034520]

約数ペア:

[(1, 20681034520), (2, 10340517260), (4, 5170258630), (5, 4136206904), (8, 2585129315), (10, 2068103452), (20, 1034051726), (40, 517025863), (941, 21977720), (1882, 10988860), (3764, 5494430), (4705, 4395544), (7528, 2747215), (9410, 2197772), (18820, 1098886), (37640, 549443)]