19954580

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{23203}}^1$

素因数の和:23255

約数の個数: 24

約数和(自身を含む): 42880992

約数和(自身を除く): 22926412

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 23203, 46406, 92812, 116015, 232030, 464060, 997729, 1995458, 3990916, 4988645, 9977290, 19954580]

約数ペア:

[(1, 19954580), (2, 9977290), (4, 4988645), (5, 3990916), (10, 1995458), (20, 997729), (43, 464060), (86, 232030), (172, 116015), (215, 92812), (430, 46406), (860, 23203)]