1321612800

素因数分解:

$2^9\times 3^1\times 5^2\times {\mathrm{127}}^1\times {\mathrm{271}}^1$

素因数の和:429

約数の個数: 240

約数和(自身を含む): 4416479232

約数和(自身を除く): 3094866432

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 32, 40, 48, 50, 60, 64, 75, 80, 96, 100, 120, 127, 128, 150, 160, 192, 200, 240, 254, 256, 271, 300, 320, 381, 384, 400, 480, 508, 512, 542, 600, 635, 640, 762, 768, 800, 813, 960, 1016, 1084, 1200, 1270, 1280, 1355, 1524, 1536, 1600, 1626, 1905, 1920, 2032, 2168, 2400, 2540, 2560, 2710, 3048, 3175, 3200, 3252, 3810, 3840, 4064, 4065, 4336, 4800, 5080, 5420, 6096, 6350, 6400, 6504, 6775, 7620, 7680, 8128, 8130, 8672, 9525, 9600, 10160, 10840, 12192, 12700, 12800, 13008, 13550, 15240, 16256, 16260, 17344, 19050, 19200, 20320, 20325, 21680, 24384, 25400, 26016, 27100, 30480, 32512, 32520, 34417, 34688, 38100, 38400, 40640, 40650, 43360, 48768, 50800, 52032, 54200, 60960, 65024, 65040, 68834, 69376, 76200, 81280, 81300, 86720, 97536, 101600, 103251, 104064, 108400, 121920, 130080, 137668, 138752, 152400, 162560, 162600, 172085, 173440, 195072, 203200, 206502, 208128, 216800, 243840, 260160, 275336, 304800, 325120, 325200, 344170, 346880, 406400, 413004, 416256, 433600, 487680, 516255, 520320, 550672, 609600, 650400, 688340, 693760, 812800, 826008, 860425, 867200, 975360, 1032510, 1040640, 1101344, 1219200, 1300800, 1376680, 1625600, 1652016, 1720850, 1734400, 2065020, 2081280, 2202688, 2438400, 2581275, 2601600, 2753360, 3304032, 3441700, 3468800, 4130040, 4405376, 4876800, 5162550, 5203200, 5506720, 6608064, 6883400, 8260080, 8810752, 10325100, 10406400, 11013440, 13216128, 13766800, 16520160, 17621504, 20650200, 22026880, 26432256, 27533600, 33040320, 41300400, 44053760, 52864512, 55067200, 66080640, 82600800, 88107520, 110134400, 132161280, 165201600, 220268800, 264322560, 330403200, 440537600, 660806400, 1321612800]

約数ペア:

[(1, 1321612800), (2, 660806400), (3, 440537600), (4, 330403200), (5, 264322560), (6, 220268800), (8, 165201600), (10, 132161280), (12, 110134400), (15, 88107520), (16, 82600800), (20, 66080640), (24, 55067200), (25, 52864512), (30, 44053760), (32, 41300400), (40, 33040320), (48, 27533600), (50, 26432256), (60, 22026880), (64, 20650200), (75, 17621504), (80, 16520160), (96, 13766800), (100, 13216128), (120, 11013440), (127, 10406400), (128, 10325100), (150, 8810752), (160, 8260080), (192, 6883400), (200, 6608064), (240, 5506720), (254, 5203200), (256, 5162550), (271, 4876800), (300, 4405376), (320, 4130040), (381, 3468800), (384, 3441700), (400, 3304032), (480, 2753360), (508, 2601600), (512, 2581275), (542, 2438400), (600, 2202688), (635, 2081280), (640, 2065020), (762, 1734400), (768, 1720850), (800, 1652016), (813, 1625600), (960, 1376680), (1016, 1300800), (1084, 1219200), (1200, 1101344), (1270, 1040640), (1280, 1032510), (1355, 975360), (1524, 867200), (1536, 860425), (1600, 826008), (1626, 812800), (1905, 693760), (1920, 688340), (2032, 650400), (2168, 609600), (2400, 550672), (2540, 520320), (2560, 516255), (2710, 487680), (3048, 433600), (3175, 416256), (3200, 413004), (3252, 406400), (3810, 346880), (3840, 344170), (4064, 325200), (4065, 325120), (4336, 304800), (4800, 275336), (5080, 260160), (5420, 243840), (6096, 216800), (6350, 208128), (6400, 206502), (6504, 203200), (6775, 195072), (7620, 173440), (7680, 172085), (8128, 162600), (8130, 162560), (8672, 152400), (9525, 138752), (9600, 137668), (10160, 130080), (10840, 121920), (12192, 108400), (12700, 104064), (12800, 103251), (13008, 101600), (13550, 97536), (15240, 86720), (16256, 81300), (16260, 81280), (17344, 76200), (19050, 69376), (19200, 68834), (20320, 65040), (20325, 65024), (21680, 60960), (24384, 54200), (25400, 52032), (26016, 50800), (27100, 48768), (30480, 43360), (32512, 40650), (32520, 40640), (34417, 38400), (34688, 38100)]