21968720

素因数分解:

$2^4\times 5^1\times {\mathrm{274609}}^1$

素因数の和:274622

約数の個数: 20

約数和(自身を含む): 51077460

約数和(自身を除く): 29108740

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 274609, 549218, 1098436, 1373045, 2196872, 2746090, 4393744, 5492180, 10984360, 21968720]

約数ペア:

[(1, 21968720), (2, 10984360), (4, 5492180), (5, 4393744), (8, 2746090), (10, 2196872), (16, 1373045), (20, 1098436), (40, 549218), (80, 274609)]