38920780

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{27409}}^1$

素因数の和:27489

約数の個数: 24

約数和(自身を含む): 82887840

約数和(自身を除く): 43967060

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 27409, 54818, 109636, 137045, 274090, 548180, 1946039, 3892078, 7784156, 9730195, 19460390, 38920780]

約数ペア:

[(1, 38920780), (2, 19460390), (4, 9730195), (5, 7784156), (10, 3892078), (20, 1946039), (71, 548180), (142, 274090), (284, 137045), (355, 109636), (710, 54818), (1420, 27409)]