818052860

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{487}}^1\times {\mathrm{1787}}^1$

素因数の和:2330

約数の個数: 48

約数和(自身を含む): 1759048704

約数和(自身を除く): 940995844

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 487, 940, 974, 1787, 1948, 2435, 3574, 4870, 7148, 8935, 9740, 17870, 22889, 35740, 45778, 83989, 91556, 114445, 167978, 228890, 335956, 419945, 457780, 839890, 870269, 1679780, 1740538, 3481076, 4351345, 8702690, 17405380, 40902643, 81805286, 163610572, 204513215, 409026430, 818052860]

約数ペア:

[(1, 818052860), (2, 409026430), (4, 204513215), (5, 163610572), (10, 81805286), (20, 40902643), (47, 17405380), (94, 8702690), (188, 4351345), (235, 3481076), (470, 1740538), (487, 1679780), (940, 870269), (974, 839890), (1787, 457780), (1948, 419945), (2435, 335956), (3574, 228890), (4870, 167978), (7148, 114445), (8935, 91556), (9740, 83989), (17870, 45778), (22889, 35740)]