21752320

素因数分解:

$2^9\times 5^1\times {\mathrm{29}}^1\times {\mathrm{293}}^1$

素因数の和:345

約数の個数: 80

約数和(自身を含む): 54137160

約数和(自身を除く): 32384840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 128, 145, 160, 232, 256, 290, 293, 320, 464, 512, 580, 586, 640, 928, 1160, 1172, 1280, 1465, 1856, 2320, 2344, 2560, 2930, 3712, 4640, 4688, 5860, 7424, 8497, 9280, 9376, 11720, 14848, 16994, 18560, 18752, 23440, 33988, 37120, 37504, 42485, 46880, 67976, 74240, 75008, 84970, 93760, 135952, 150016, 169940, 187520, 271904, 339880, 375040, 543808, 679760, 750080, 1087616, 1359520, 2175232, 2719040, 4350464, 5438080, 10876160, 21752320]

約数ペア:

[(1, 21752320), (2, 10876160), (4, 5438080), (5, 4350464), (8, 2719040), (10, 2175232), (16, 1359520), (20, 1087616), (29, 750080), (32, 679760), (40, 543808), (58, 375040), (64, 339880), (80, 271904), (116, 187520), (128, 169940), (145, 150016), (160, 135952), (232, 93760), (256, 84970), (290, 75008), (293, 74240), (320, 67976), (464, 46880), (512, 42485), (580, 37504), (586, 37120), (640, 33988), (928, 23440), (1160, 18752), (1172, 18560), (1280, 16994), (1465, 14848), (1856, 11720), (2320, 9376), (2344, 9280), (2560, 8497), (2930, 7424), (3712, 5860), (4640, 4688)]