68665520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:259

約数の個数: 160

約数和(自身を含む): 203129856

約数和(自身を除く): 134464336

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 71, 77, 80, 88, 110, 112, 140, 142, 154, 157, 176, 220, 280, 284, 308, 314, 355, 385, 440, 497, 560, 568, 616, 628, 710, 770, 781, 785, 880, 994, 1099, 1136, 1232, 1256, 1420, 1540, 1562, 1570, 1727, 1988, 2198, 2485, 2512, 2840, 3080, 3124, 3140, 3454, 3905, 3976, 4396, 4970, 5467, 5495, 5680, 6160, 6248, 6280, 6908, 7810, 7952, 8635, 8792, 9940, 10934, 10990, 11147, 12089, 12496, 12560, 13816, 15620, 17270, 17584, 19880, 21868, 21980, 22294, 24178, 27335, 27632, 31240, 34540, 39760, 43736, 43960, 44588, 48356, 54670, 55735, 60445, 62480, 69080, 78029, 87472, 87920, 89176, 96712, 109340, 111470, 120890, 122617, 138160, 156058, 178352, 193424, 218680, 222940, 241780, 245234, 312116, 390145, 437360, 445880, 483560, 490468, 613085, 624232, 780290, 858319, 891760, 967120, 980936, 1226170, 1248464, 1560580, 1716638, 1961872, 2452340, 3121160, 3433276, 4291595, 4904680, 6242320, 6866552, 8583190, 9809360, 13733104, 17166380, 34332760, 68665520]

約数ペア:

[(1, 68665520), (2, 34332760), (4, 17166380), (5, 13733104), (7, 9809360), (8, 8583190), (10, 6866552), (11, 6242320), (14, 4904680), (16, 4291595), (20, 3433276), (22, 3121160), (28, 2452340), (35, 1961872), (40, 1716638), (44, 1560580), (55, 1248464), (56, 1226170), (70, 980936), (71, 967120), (77, 891760), (80, 858319), (88, 780290), (110, 624232), (112, 613085), (140, 490468), (142, 483560), (154, 445880), (157, 437360), (176, 390145), (220, 312116), (280, 245234), (284, 241780), (308, 222940), (314, 218680), (355, 193424), (385, 178352), (440, 156058), (497, 138160), (560, 122617), (568, 120890), (616, 111470), (628, 109340), (710, 96712), (770, 89176), (781, 87920), (785, 87472), (880, 78029), (994, 69080), (1099, 62480), (1136, 60445), (1232, 55735), (1256, 54670), (1420, 48356), (1540, 44588), (1562, 43960), (1570, 43736), (1727, 39760), (1988, 34540), (2198, 31240), (2485, 27632), (2512, 27335), (2840, 24178), (3080, 22294), (3124, 21980), (3140, 21868), (3454, 19880), (3905, 17584), (3976, 17270), (4396, 15620), (4970, 13816), (5467, 12560), (5495, 12496), (5680, 12089), (6160, 11147), (6248, 10990), (6280, 10934), (6908, 9940), (7810, 8792), (7952, 8635)]