80390280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{251}}^1$

素因数の和:439

約数の個数: 128

約数和(自身を含む): 258007680

約数和(自身を除く): 177617400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 157, 170, 204, 251, 255, 314, 340, 408, 471, 502, 510, 628, 680, 753, 785, 942, 1004, 1020, 1255, 1256, 1506, 1570, 1884, 2008, 2040, 2355, 2510, 2669, 3012, 3140, 3765, 3768, 4267, 4710, 5020, 5338, 6024, 6280, 7530, 8007, 8534, 9420, 10040, 10676, 12801, 13345, 15060, 16014, 17068, 18840, 21335, 21352, 25602, 26690, 30120, 32028, 34136, 39407, 40035, 42670, 51204, 53380, 64005, 64056, 78814, 80070, 85340, 102408, 106760, 118221, 128010, 157628, 160140, 170680, 197035, 236442, 256020, 315256, 320280, 394070, 472884, 512040, 591105, 669919, 788140, 945768, 1182210, 1339838, 1576280, 2009757, 2364420, 2679676, 3349595, 4019514, 4728840, 5359352, 6699190, 8039028, 10048785, 13398380, 16078056, 20097570, 26796760, 40195140, 80390280]

約数ペア:

[(1, 80390280), (2, 40195140), (3, 26796760), (4, 20097570), (5, 16078056), (6, 13398380), (8, 10048785), (10, 8039028), (12, 6699190), (15, 5359352), (17, 4728840), (20, 4019514), (24, 3349595), (30, 2679676), (34, 2364420), (40, 2009757), (51, 1576280), (60, 1339838), (68, 1182210), (85, 945768), (102, 788140), (120, 669919), (136, 591105), (157, 512040), (170, 472884), (204, 394070), (251, 320280), (255, 315256), (314, 256020), (340, 236442), (408, 197035), (471, 170680), (502, 160140), (510, 157628), (628, 128010), (680, 118221), (753, 106760), (785, 102408), (942, 85340), (1004, 80070), (1020, 78814), (1255, 64056), (1256, 64005), (1506, 53380), (1570, 51204), (1884, 42670), (2008, 40035), (2040, 39407), (2355, 34136), (2510, 32028), (2669, 30120), (3012, 26690), (3140, 25602), (3765, 21352), (3768, 21335), (4267, 18840), (4710, 17068), (5020, 16014), (5338, 15060), (6024, 13345), (6280, 12801), (7530, 10676), (8007, 10040), (8534, 9420)]