16740040

素因数分解:

$2^3\times 5^1\times {\mathrm{431}}^1\times {\mathrm{971}}^1$

素因数の和:1413

約数の個数: 32

約数和(自身を含む): 37791360

約数和(自身を除く): 21051320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 431, 862, 971, 1724, 1942, 2155, 3448, 3884, 4310, 4855, 7768, 8620, 9710, 17240, 19420, 38840, 418501, 837002, 1674004, 2092505, 3348008, 4185010, 8370020, 16740040]

約数ペア:

[(1, 16740040), (2, 8370020), (4, 4185010), (5, 3348008), (8, 2092505), (10, 1674004), (20, 837002), (40, 418501), (431, 38840), (862, 19420), (971, 17240), (1724, 9710), (1942, 8620), (2155, 7768), (3448, 4855), (3884, 4310)]