78876720

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^2$

素因数の和:141

約数の個数: 240

約数和(自身を含む): 298210080

約数和(自身を除く): 219333360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 48, 52, 53, 54, 60, 65, 72, 78, 80, 90, 104, 106, 108, 117, 120, 130, 135, 144, 156, 159, 180, 195, 208, 212, 216, 234, 240, 260, 265, 270, 312, 318, 351, 360, 390, 424, 432, 468, 477, 520, 530, 540, 585, 624, 636, 689, 702, 720, 780, 795, 848, 936, 954, 1040, 1060, 1080, 1170, 1272, 1378, 1404, 1431, 1560, 1590, 1755, 1872, 1908, 2067, 2120, 2160, 2340, 2385, 2544, 2756, 2808, 2809, 2862, 3120, 3180, 3445, 3510, 3816, 4134, 4240, 4680, 4770, 5512, 5616, 5618, 5724, 6201, 6360, 6890, 7020, 7155, 7632, 8268, 8427, 9360, 9540, 10335, 11024, 11236, 11448, 12402, 12720, 13780, 14040, 14045, 14310, 16536, 16854, 18603, 19080, 20670, 22472, 22896, 24804, 25281, 27560, 28080, 28090, 28620, 31005, 33072, 33708, 36517, 37206, 38160, 41340, 42135, 44944, 49608, 50562, 55120, 56180, 57240, 62010, 67416, 73034, 74412, 75843, 82680, 84270, 93015, 99216, 101124, 109551, 112360, 114480, 124020, 126405, 134832, 146068, 148824, 151686, 165360, 168540, 182585, 186030, 202248, 219102, 224720, 248040, 252810, 292136, 297648, 303372, 328653, 337080, 365170, 372060, 379215, 404496, 438204, 496080, 505620, 547755, 584272, 606744, 657306, 674160, 730340, 744120, 758430, 876408, 985959, 1011240, 1095510, 1213488, 1314612, 1460680, 1488240, 1516860, 1643265, 1752816, 1971918, 2022480, 2191020, 2629224, 2921360, 3033720, 3286530, 3943836, 4382040, 4929795, 5258448, 6067440, 6573060, 7887672, 8764080, 9859590, 13146120, 15775344, 19719180, 26292240, 39438360, 78876720]

約数ペア:

[(1, 78876720), (2, 39438360), (3, 26292240), (4, 19719180), (5, 15775344), (6, 13146120), (8, 9859590), (9, 8764080), (10, 7887672), (12, 6573060), (13, 6067440), (15, 5258448), (16, 4929795), (18, 4382040), (20, 3943836), (24, 3286530), (26, 3033720), (27, 2921360), (30, 2629224), (36, 2191020), (39, 2022480), (40, 1971918), (45, 1752816), (48, 1643265), (52, 1516860), (53, 1488240), (54, 1460680), (60, 1314612), (65, 1213488), (72, 1095510), (78, 1011240), (80, 985959), (90, 876408), (104, 758430), (106, 744120), (108, 730340), (117, 674160), (120, 657306), (130, 606744), (135, 584272), (144, 547755), (156, 505620), (159, 496080), (180, 438204), (195, 404496), (208, 379215), (212, 372060), (216, 365170), (234, 337080), (240, 328653), (260, 303372), (265, 297648), (270, 292136), (312, 252810), (318, 248040), (351, 224720), (360, 219102), (390, 202248), (424, 186030), (432, 182585), (468, 168540), (477, 165360), (520, 151686), (530, 148824), (540, 146068), (585, 134832), (624, 126405), (636, 124020), (689, 114480), (702, 112360), (720, 109551), (780, 101124), (795, 99216), (848, 93015), (936, 84270), (954, 82680), (1040, 75843), (1060, 74412), (1080, 73034), (1170, 67416), (1272, 62010), (1378, 57240), (1404, 56180), (1431, 55120), (1560, 50562), (1590, 49608), (1755, 44944), (1872, 42135), (1908, 41340), (2067, 38160), (2120, 37206), (2160, 36517), (2340, 33708), (2385, 33072), (2544, 31005), (2756, 28620), (2808, 28090), (2809, 28080), (2862, 27560), (3120, 25281), (3180, 24804), (3445, 22896), (3510, 22472), (3816, 20670), (4134, 19080), (4240, 18603), (4680, 16854), (4770, 16536), (5512, 14310), (5616, 14045), (5618, 14040), (5724, 13780), (6201, 12720), (6360, 12402), (6890, 11448), (7020, 11236), (7155, 11024), (7632, 10335), (8268, 9540), (8427, 9360)]