256564080

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{15493}}^1$

素因数の和:15535

約数の個数: 120

約数和(自身を含む): 899147808

約数和(自身を除く): 642583728

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 36, 40, 45, 46, 48, 60, 69, 72, 80, 90, 92, 115, 120, 138, 144, 180, 184, 207, 230, 240, 276, 345, 360, 368, 414, 460, 552, 690, 720, 828, 920, 1035, 1104, 1380, 1656, 1840, 2070, 2760, 3312, 4140, 5520, 8280, 15493, 16560, 30986, 46479, 61972, 77465, 92958, 123944, 139437, 154930, 185916, 232395, 247888, 278874, 309860, 356339, 371832, 464790, 557748, 619720, 697185, 712678, 743664, 929580, 1069017, 1115496, 1239440, 1394370, 1425356, 1781695, 1859160, 2138034, 2230992, 2788740, 2850712, 3207051, 3563390, 3718320, 4276068, 5345085, 5577480, 5701424, 6414102, 7126780, 8552136, 10690170, 11154960, 12828204, 14253560, 16035255, 17104272, 21380340, 25656408, 28507120, 32070510, 42760680, 51312816, 64141020, 85521360, 128282040, 256564080]

約数ペア:

[(1, 256564080), (2, 128282040), (3, 85521360), (4, 64141020), (5, 51312816), (6, 42760680), (8, 32070510), (9, 28507120), (10, 25656408), (12, 21380340), (15, 17104272), (16, 16035255), (18, 14253560), (20, 12828204), (23, 11154960), (24, 10690170), (30, 8552136), (36, 7126780), (40, 6414102), (45, 5701424), (46, 5577480), (48, 5345085), (60, 4276068), (69, 3718320), (72, 3563390), (80, 3207051), (90, 2850712), (92, 2788740), (115, 2230992), (120, 2138034), (138, 1859160), (144, 1781695), (180, 1425356), (184, 1394370), (207, 1239440), (230, 1115496), (240, 1069017), (276, 929580), (345, 743664), (360, 712678), (368, 697185), (414, 619720), (460, 557748), (552, 464790), (690, 371832), (720, 356339), (828, 309860), (920, 278874), (1035, 247888), (1104, 232395), (1380, 185916), (1656, 154930), (1840, 139437), (2070, 123944), (2760, 92958), (3312, 77465), (4140, 61972), (5520, 46479), (8280, 30986), (15493, 16560)]