207960040

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{120907}}^1$

素因数の和:120961

約数の個数: 32

約数和(自身を含む): 478795680

約数和(自身を除く): 270835640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 120907, 241814, 483628, 604535, 967256, 1209070, 2418140, 4836280, 5199001, 10398002, 20796004, 25995005, 41592008, 51990010, 103980020, 207960040]

約数ペア:

[(1, 207960040), (2, 103980020), (4, 51990010), (5, 41592008), (8, 25995005), (10, 20796004), (20, 10398002), (40, 5199001), (43, 4836280), (86, 2418140), (172, 1209070), (215, 967256), (344, 604535), (430, 483628), (860, 241814), (1720, 120907)]