312440320

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^2\times {\mathrm{127}}^1$

素因数の和:212

約数の個数: 120

約数和(自身を含む): 780164352

約数和(自身を除く): 467724032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 127, 128, 155, 160, 248, 254, 256, 310, 320, 496, 508, 512, 620, 635, 640, 961, 992, 1016, 1240, 1270, 1280, 1922, 1984, 2032, 2480, 2540, 2560, 3844, 3937, 3968, 4064, 4805, 4960, 5080, 7688, 7874, 7936, 8128, 9610, 9920, 10160, 15376, 15748, 15872, 16256, 19220, 19685, 19840, 20320, 30752, 31496, 32512, 38440, 39370, 39680, 40640, 61504, 62992, 65024, 76880, 78740, 79360, 81280, 122047, 123008, 125984, 153760, 157480, 162560, 244094, 246016, 251968, 307520, 314960, 325120, 488188, 492032, 503936, 610235, 615040, 629920, 976376, 1007872, 1220470, 1230080, 1259840, 1952752, 2015744, 2440940, 2460160, 2519680, 3905504, 4881880, 5039360, 7811008, 9763760, 10078720, 15622016, 19527520, 31244032, 39055040, 62488064, 78110080, 156220160, 312440320]

約数ペア:

[(1, 312440320), (2, 156220160), (4, 78110080), (5, 62488064), (8, 39055040), (10, 31244032), (16, 19527520), (20, 15622016), (31, 10078720), (32, 9763760), (40, 7811008), (62, 5039360), (64, 4881880), (80, 3905504), (124, 2519680), (127, 2460160), (128, 2440940), (155, 2015744), (160, 1952752), (248, 1259840), (254, 1230080), (256, 1220470), (310, 1007872), (320, 976376), (496, 629920), (508, 615040), (512, 610235), (620, 503936), (635, 492032), (640, 488188), (961, 325120), (992, 314960), (1016, 307520), (1240, 251968), (1270, 246016), (1280, 244094), (1922, 162560), (1984, 157480), (2032, 153760), (2480, 125984), (2540, 123008), (2560, 122047), (3844, 81280), (3937, 79360), (3968, 78740), (4064, 76880), (4805, 65024), (4960, 62992), (5080, 61504), (7688, 40640), (7874, 39680), (7936, 39370), (8128, 38440), (9610, 32512), (9920, 31496), (10160, 30752), (15376, 20320), (15748, 19840), (15872, 19685), (16256, 19220)]