6720040

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3907}}^1$

素因数の和:3961

約数の個数: 32

約数和(自身を含む): 15475680

約数和(自身を除く): 8755640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 3907, 7814, 15628, 19535, 31256, 39070, 78140, 156280, 168001, 336002, 672004, 840005, 1344008, 1680010, 3360020, 6720040]

約数ペア:

[(1, 6720040), (2, 3360020), (4, 1680010), (5, 1344008), (8, 840005), (10, 672004), (20, 336002), (40, 168001), (43, 156280), (86, 78140), (172, 39070), (215, 31256), (344, 19535), (430, 15628), (860, 7814), (1720, 3907)]