247654840

素因数分解:

$2^3\times 5^1\times {\mathrm{6191371}}^1$

素因数の和:6191382

約数の個数: 16

約数和(自身を含む): 557223480

約数和(自身を除く): 309568640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 6191371, 12382742, 24765484, 30956855, 49530968, 61913710, 123827420, 247654840]

約数ペア:

[(1, 247654840), (2, 123827420), (4, 61913710), (5, 49530968), (8, 30956855), (10, 24765484), (20, 12382742), (40, 6191371)]