7944380

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{809}}^1$

素因数の和:1309

約数の個数: 24

約数和(自身を含む): 16737840

約数和(自身を除く): 8793460

約数列:

[1, 2, 4, 5, 10, 20, 491, 809, 982, 1618, 1964, 2455, 3236, 4045, 4910, 8090, 9820, 16180, 397219, 794438, 1588876, 1986095, 3972190, 7944380]

約数ペア:

[(1, 7944380), (2, 3972190), (4, 1986095), (5, 1588876), (10, 794438), (20, 397219), (491, 16180), (809, 9820), (982, 8090), (1618, 4910), (1964, 4045), (2455, 3236)]