20184560

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{22937}}^1$

素因数の和:22961

約数の個数: 40

約数和(自身を含む): 51197616

約数和(自身を除く): 31013056

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 22937, 45874, 91748, 114685, 183496, 229370, 252307, 366992, 458740, 504614, 917480, 1009228, 1261535, 1834960, 2018456, 2523070, 4036912, 5046140, 10092280, 20184560]

約数ペア:

[(1, 20184560), (2, 10092280), (4, 5046140), (5, 4036912), (8, 2523070), (10, 2018456), (11, 1834960), (16, 1261535), (20, 1009228), (22, 917480), (40, 504614), (44, 458740), (55, 366992), (80, 252307), (88, 229370), (110, 183496), (176, 114685), (220, 91748), (440, 45874), (880, 22937)]