11921320

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1$

素因数の和:322

約数の個数: 64

約数和(自身を含む): 28512000

約数和(自身を除く): 16590680

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 43, 58, 86, 116, 145, 172, 215, 232, 239, 290, 344, 430, 478, 580, 860, 956, 1160, 1195, 1247, 1720, 1912, 2390, 2494, 4780, 4988, 6235, 6931, 9560, 9976, 10277, 12470, 13862, 20554, 24940, 27724, 34655, 41108, 49880, 51385, 55448, 69310, 82216, 102770, 138620, 205540, 277240, 298033, 411080, 596066, 1192132, 1490165, 2384264, 2980330, 5960660, 11921320]

約数ペア:

[(1, 11921320), (2, 5960660), (4, 2980330), (5, 2384264), (8, 1490165), (10, 1192132), (20, 596066), (29, 411080), (40, 298033), (43, 277240), (58, 205540), (86, 138620), (116, 102770), (145, 82216), (172, 69310), (215, 55448), (232, 51385), (239, 49880), (290, 41108), (344, 34655), (430, 27724), (478, 24940), (580, 20554), (860, 13862), (956, 12470), (1160, 10277), (1195, 9976), (1247, 9560), (1720, 6931), (1912, 6235), (2390, 4988), (2494, 4780)]