18574280

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{10799}}^1$

素因数の和:10853

約数の個数: 32

約数和(自身を含む): 42768000

約数和(自身を除く): 24193720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 10799, 21598, 43196, 53995, 86392, 107990, 215980, 431960, 464357, 928714, 1857428, 2321785, 3714856, 4643570, 9287140, 18574280]

約数ペア:

[(1, 18574280), (2, 9287140), (4, 4643570), (5, 3714856), (8, 2321785), (10, 1857428), (20, 928714), (40, 464357), (43, 431960), (86, 215980), (172, 107990), (215, 86392), (344, 53995), (430, 43196), (860, 21598), (1720, 10799)]