128273040

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{821}}^1$

素因数の和:878

約数の個数: 240

約数和(自身を含む): 508824576

約数和(自身を除く): 380551536

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 31, 35, 36, 40, 42, 45, 48, 56, 60, 62, 63, 70, 72, 80, 84, 90, 93, 105, 112, 120, 124, 126, 140, 144, 155, 168, 180, 186, 210, 217, 240, 248, 252, 279, 280, 310, 315, 336, 360, 372, 420, 434, 465, 496, 504, 558, 560, 620, 630, 651, 720, 744, 821, 840, 868, 930, 1008, 1085, 1116, 1240, 1260, 1302, 1395, 1488, 1642, 1680, 1736, 1860, 1953, 2170, 2232, 2463, 2480, 2520, 2604, 2790, 3255, 3284, 3472, 3720, 3906, 4105, 4340, 4464, 4926, 5040, 5208, 5580, 5747, 6510, 6568, 7389, 7440, 7812, 8210, 8680, 9765, 9852, 10416, 11160, 11494, 12315, 13020, 13136, 14778, 15624, 16420, 17241, 17360, 19530, 19704, 22320, 22988, 24630, 25451, 26040, 28735, 29556, 31248, 32840, 34482, 36945, 39060, 39408, 45976, 49260, 50902, 51723, 52080, 57470, 59112, 65680, 68964, 73890, 76353, 78120, 86205, 91952, 98520, 101804, 103446, 114940, 118224, 127255, 137928, 147780, 152706, 156240, 172410, 178157, 197040, 203608, 206892, 229059, 229880, 254510, 258615, 275856, 295560, 305412, 344820, 356314, 381765, 407216, 413784, 458118, 459760, 509020, 517230, 534471, 591120, 610824, 689640, 712628, 763530, 827568, 890785, 916236, 1018040, 1034460, 1068942, 1145295, 1221648, 1379280, 1425256, 1527060, 1603413, 1781570, 1832472, 2036080, 2068920, 2137884, 2290590, 2672355, 2850512, 3054120, 3206826, 3563140, 3664944, 4137840, 4275768, 4581180, 5344710, 6108240, 6413652, 7126280, 8017065, 8551536, 9162360, 10689420, 12827304, 14252560, 16034130, 18324720, 21378840, 25654608, 32068260, 42757680, 64136520, 128273040]

約数ペア:

[(1, 128273040), (2, 64136520), (3, 42757680), (4, 32068260), (5, 25654608), (6, 21378840), (7, 18324720), (8, 16034130), (9, 14252560), (10, 12827304), (12, 10689420), (14, 9162360), (15, 8551536), (16, 8017065), (18, 7126280), (20, 6413652), (21, 6108240), (24, 5344710), (28, 4581180), (30, 4275768), (31, 4137840), (35, 3664944), (36, 3563140), (40, 3206826), (42, 3054120), (45, 2850512), (48, 2672355), (56, 2290590), (60, 2137884), (62, 2068920), (63, 2036080), (70, 1832472), (72, 1781570), (80, 1603413), (84, 1527060), (90, 1425256), (93, 1379280), (105, 1221648), (112, 1145295), (120, 1068942), (124, 1034460), (126, 1018040), (140, 916236), (144, 890785), (155, 827568), (168, 763530), (180, 712628), (186, 689640), (210, 610824), (217, 591120), (240, 534471), (248, 517230), (252, 509020), (279, 459760), (280, 458118), (310, 413784), (315, 407216), (336, 381765), (360, 356314), (372, 344820), (420, 305412), (434, 295560), (465, 275856), (496, 258615), (504, 254510), (558, 229880), (560, 229059), (620, 206892), (630, 203608), (651, 197040), (720, 178157), (744, 172410), (821, 156240), (840, 152706), (868, 147780), (930, 137928), (1008, 127255), (1085, 118224), (1116, 114940), (1240, 103446), (1260, 101804), (1302, 98520), (1395, 91952), (1488, 86205), (1642, 78120), (1680, 76353), (1736, 73890), (1860, 68964), (1953, 65680), (2170, 59112), (2232, 57470), (2463, 52080), (2480, 51723), (2520, 50902), (2604, 49260), (2790, 45976), (3255, 39408), (3284, 39060), (3472, 36945), (3720, 34482), (3906, 32840), (4105, 31248), (4340, 29556), (4464, 28735), (4926, 26040), (5040, 25451), (5208, 24630), (5580, 22988), (5747, 22320), (6510, 19704), (6568, 19530), (7389, 17360), (7440, 17241), (7812, 16420), (8210, 15624), (8680, 14778), (9765, 13136), (9852, 13020), (10416, 12315), (11160, 11494)]