11880040

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{6907}}^1$

素因数の和:6961

約数の個数: 32

約数和(自身を含む): 27355680

約数和(自身を除く): 15475640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 6907, 13814, 27628, 34535, 55256, 69070, 138140, 276280, 297001, 594002, 1188004, 1485005, 2376008, 2970010, 5940020, 11880040]

約数ペア:

[(1, 11880040), (2, 5940020), (4, 2970010), (5, 2376008), (8, 1485005), (10, 1188004), (20, 594002), (40, 297001), (43, 276280), (86, 138140), (172, 69070), (215, 55256), (344, 34535), (430, 27628), (860, 13814), (1720, 6907)]