19478840

素因数分解:

$2^3\times 5^1\times {\mathrm{486971}}^1$

素因数の和:486982

約数の個数: 16

約数和(自身を含む): 43827480

約数和(自身を除く): 24348640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 486971, 973942, 1947884, 2434855, 3895768, 4869710, 9739420, 19478840]

約数ペア:

[(1, 19478840), (2, 9739420), (4, 4869710), (5, 3895768), (8, 2434855), (10, 1947884), (20, 973942), (40, 486971)]