206974940

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{145757}}^1$

素因数の和:145837

約数の個数: 24

約数和(自身を含む): 440772192

約数和(自身を除く): 233797252

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 145757, 291514, 583028, 728785, 1457570, 2915140, 10348747, 20697494, 41394988, 51743735, 103487470, 206974940]

約数ペア:

[(1, 206974940), (2, 103487470), (4, 51743735), (5, 41394988), (10, 20697494), (20, 10348747), (71, 2915140), (142, 1457570), (284, 728785), (355, 583028), (710, 291514), (1420, 145757)]