38806640

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{389}}^1$

素因数の和:474

約数の個数: 80

約数和(自身を含む): 95752800

約数和(自身を除く): 56946160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 43, 58, 80, 86, 116, 145, 172, 215, 232, 290, 344, 389, 430, 464, 580, 688, 778, 860, 1160, 1247, 1556, 1720, 1945, 2320, 2494, 3112, 3440, 3890, 4988, 6224, 6235, 7780, 9976, 11281, 12470, 15560, 16727, 19952, 22562, 24940, 31120, 33454, 45124, 49880, 56405, 66908, 83635, 90248, 99760, 112810, 133816, 167270, 180496, 225620, 267632, 334540, 451240, 485083, 669080, 902480, 970166, 1338160, 1940332, 2425415, 3880664, 4850830, 7761328, 9701660, 19403320, 38806640]

約数ペア:

[(1, 38806640), (2, 19403320), (4, 9701660), (5, 7761328), (8, 4850830), (10, 3880664), (16, 2425415), (20, 1940332), (29, 1338160), (40, 970166), (43, 902480), (58, 669080), (80, 485083), (86, 451240), (116, 334540), (145, 267632), (172, 225620), (215, 180496), (232, 167270), (290, 133816), (344, 112810), (389, 99760), (430, 90248), (464, 83635), (580, 66908), (688, 56405), (778, 49880), (860, 45124), (1160, 33454), (1247, 31120), (1556, 24940), (1720, 22562), (1945, 19952), (2320, 16727), (2494, 15560), (3112, 12470), (3440, 11281), (3890, 9976), (4988, 7780), (6224, 6235)]