2904187640

素因数分解:

$2^3\times 5^1\times {\mathrm{72604691}}^1$

素因数の和:72604702

約数の個数: 16

約数和(自身を含む): 6534422280

約数和(自身を除く): 3630234640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 72604691, 145209382, 290418764, 363023455, 580837528, 726046910, 1452093820, 2904187640]

約数ペア:

[(1, 2904187640), (2, 1452093820), (4, 726046910), (5, 580837528), (8, 363023455), (10, 290418764), (20, 145209382), (40, 72604691)]