18961720

素因数分解:

$2^3\times 5^1\times {\mathrm{474043}}^1$

素因数の和:474054

約数の個数: 16

約数和(自身を含む): 42663960

約数和(自身を除く): 23702240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 474043, 948086, 1896172, 2370215, 3792344, 4740430, 9480860, 18961720]

約数ペア:

[(1, 18961720), (2, 9480860), (4, 4740430), (5, 3792344), (8, 2370215), (10, 1896172), (20, 948086), (40, 474043)]