1285220400

素因数分解:

$2^4\times 3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{251}}^2$

素因数の和:540

約数の個数: 180

約数和(自身を含む): 4376601576

約数和(自身を除く): 3091381176

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 25, 30, 34, 40, 48, 50, 51, 60, 68, 75, 80, 85, 100, 102, 120, 136, 150, 170, 200, 204, 240, 251, 255, 272, 300, 340, 400, 408, 425, 502, 510, 600, 680, 753, 816, 850, 1004, 1020, 1200, 1255, 1275, 1360, 1506, 1700, 2008, 2040, 2510, 2550, 3012, 3400, 3765, 4016, 4080, 4267, 5020, 5100, 6024, 6275, 6800, 7530, 8534, 10040, 10200, 12048, 12550, 12801, 15060, 17068, 18825, 20080, 20400, 21335, 25100, 25602, 30120, 34136, 37650, 42670, 50200, 51204, 60240, 63001, 64005, 68272, 75300, 85340, 100400, 102408, 106675, 126002, 128010, 150600, 170680, 189003, 204816, 213350, 252004, 256020, 301200, 315005, 320025, 341360, 378006, 426700, 504008, 512040, 630010, 640050, 756012, 853400, 945015, 1008016, 1024080, 1071017, 1260020, 1280100, 1512024, 1575025, 1706800, 1890030, 2142034, 2520040, 2560200, 3024048, 3150050, 3213051, 3780060, 4284068, 4725075, 5040080, 5120400, 5355085, 6300100, 6426102, 7560120, 8568136, 9450150, 10710170, 12600200, 12852204, 15120240, 16065255, 17136272, 18900300, 21420340, 25200400, 25704408, 26775425, 32130510, 37800600, 42840680, 51408816, 53550850, 64261020, 75601200, 80326275, 85681360, 107101700, 128522040, 160652550, 214203400, 257044080, 321305100, 428406800, 642610200, 1285220400]

約数ペア:

[(1, 1285220400), (2, 642610200), (3, 428406800), (4, 321305100), (5, 257044080), (6, 214203400), (8, 160652550), (10, 128522040), (12, 107101700), (15, 85681360), (16, 80326275), (17, 75601200), (20, 64261020), (24, 53550850), (25, 51408816), (30, 42840680), (34, 37800600), (40, 32130510), (48, 26775425), (50, 25704408), (51, 25200400), (60, 21420340), (68, 18900300), (75, 17136272), (80, 16065255), (85, 15120240), (100, 12852204), (102, 12600200), (120, 10710170), (136, 9450150), (150, 8568136), (170, 7560120), (200, 6426102), (204, 6300100), (240, 5355085), (251, 5120400), (255, 5040080), (272, 4725075), (300, 4284068), (340, 3780060), (400, 3213051), (408, 3150050), (425, 3024048), (502, 2560200), (510, 2520040), (600, 2142034), (680, 1890030), (753, 1706800), (816, 1575025), (850, 1512024), (1004, 1280100), (1020, 1260020), (1200, 1071017), (1255, 1024080), (1275, 1008016), (1360, 945015), (1506, 853400), (1700, 756012), (2008, 640050), (2040, 630010), (2510, 512040), (2550, 504008), (3012, 426700), (3400, 378006), (3765, 341360), (4016, 320025), (4080, 315005), (4267, 301200), (5020, 256020), (5100, 252004), (6024, 213350), (6275, 204816), (6800, 189003), (7530, 170680), (8534, 150600), (10040, 128010), (10200, 126002), (12048, 106675), (12550, 102408), (12801, 100400), (15060, 85340), (17068, 75300), (18825, 68272), (20080, 64005), (20400, 63001), (21335, 60240), (25100, 51204), (25602, 50200), (30120, 42670), (34136, 37650)]