18894040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1867}}^1$

素因数の和:1912

約数の個数: 64

約数和(自身を含む): 48418560

約数和(自身を除く): 29524520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 44, 46, 55, 88, 92, 110, 115, 184, 220, 230, 253, 440, 460, 506, 920, 1012, 1265, 1867, 2024, 2530, 3734, 5060, 7468, 9335, 10120, 14936, 18670, 20537, 37340, 41074, 42941, 74680, 82148, 85882, 102685, 164296, 171764, 205370, 214705, 343528, 410740, 429410, 472351, 821480, 858820, 944702, 1717640, 1889404, 2361755, 3778808, 4723510, 9447020, 18894040]

約数ペア:

[(1, 18894040), (2, 9447020), (4, 4723510), (5, 3778808), (8, 2361755), (10, 1889404), (11, 1717640), (20, 944702), (22, 858820), (23, 821480), (40, 472351), (44, 429410), (46, 410740), (55, 343528), (88, 214705), (92, 205370), (110, 171764), (115, 164296), (184, 102685), (220, 85882), (230, 82148), (253, 74680), (440, 42941), (460, 41074), (506, 37340), (920, 20537), (1012, 18670), (1265, 14936), (1867, 10120), (2024, 9335), (2530, 7468), (3734, 5060)]