19473880

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{6857}}^1$

素因数の和:6939

約数の個数: 32

約数和(自身を含む): 44439840

約数和(自身を除く): 24965960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 6857, 13714, 27428, 34285, 54856, 68570, 137140, 274280, 486847, 973694, 1947388, 2434235, 3894776, 4868470, 9736940, 19473880]

約数ペア:

[(1, 19473880), (2, 9736940), (4, 4868470), (5, 3894776), (8, 2434235), (10, 1947388), (20, 973694), (40, 486847), (71, 274280), (142, 137140), (284, 68570), (355, 54856), (568, 34285), (710, 27428), (1420, 13714), (2840, 6857)]