20238520

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{239}}^1$

素因数の和:352

約数の個数: 64

約数和(自身を含む): 47952000

約数和(自身を除く): 27713480

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 73, 116, 145, 146, 232, 239, 290, 292, 365, 478, 580, 584, 730, 956, 1160, 1195, 1460, 1912, 2117, 2390, 2920, 4234, 4780, 6931, 8468, 9560, 10585, 13862, 16936, 17447, 21170, 27724, 34655, 34894, 42340, 55448, 69310, 69788, 84680, 87235, 138620, 139576, 174470, 277240, 348940, 505963, 697880, 1011926, 2023852, 2529815, 4047704, 5059630, 10119260, 20238520]

約数ペア:

[(1, 20238520), (2, 10119260), (4, 5059630), (5, 4047704), (8, 2529815), (10, 2023852), (20, 1011926), (29, 697880), (40, 505963), (58, 348940), (73, 277240), (116, 174470), (145, 139576), (146, 138620), (232, 87235), (239, 84680), (290, 69788), (292, 69310), (365, 55448), (478, 42340), (580, 34894), (584, 34655), (730, 27724), (956, 21170), (1160, 17447), (1195, 16936), (1460, 13862), (1912, 10585), (2117, 9560), (2390, 8468), (2920, 6931), (4234, 4780)]