278680080

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{5351}}^1$

素因数の和:5405

約数の個数: 160

約数和(自身を含む): 1019363328

約数和(自身を除く): 740683248

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 31, 35, 40, 42, 48, 56, 60, 62, 70, 80, 84, 93, 105, 112, 120, 124, 140, 155, 168, 186, 210, 217, 240, 248, 280, 310, 336, 372, 420, 434, 465, 496, 560, 620, 651, 744, 840, 868, 930, 1085, 1240, 1302, 1488, 1680, 1736, 1860, 2170, 2480, 2604, 3255, 3472, 3720, 4340, 5208, 5351, 6510, 7440, 8680, 10416, 10702, 13020, 16053, 17360, 21404, 26040, 26755, 32106, 37457, 42808, 52080, 53510, 64212, 74914, 80265, 85616, 107020, 112371, 128424, 149828, 160530, 165881, 187285, 214040, 224742, 256848, 299656, 321060, 331762, 374570, 428080, 449484, 497643, 561855, 599312, 642120, 663524, 749140, 829405, 898968, 995286, 1123710, 1161167, 1284240, 1327048, 1498280, 1658810, 1797936, 1990572, 2247420, 2322334, 2488215, 2654096, 2996560, 3317620, 3483501, 3981144, 4494840, 4644668, 4976430, 5805835, 6635240, 6967002, 7962288, 8989680, 9289336, 9952860, 11611670, 13270480, 13934004, 17417505, 18578672, 19905720, 23223340, 27868008, 34835010, 39811440, 46446680, 55736016, 69670020, 92893360, 139340040, 278680080]

約数ペア:

[(1, 278680080), (2, 139340040), (3, 92893360), (4, 69670020), (5, 55736016), (6, 46446680), (7, 39811440), (8, 34835010), (10, 27868008), (12, 23223340), (14, 19905720), (15, 18578672), (16, 17417505), (20, 13934004), (21, 13270480), (24, 11611670), (28, 9952860), (30, 9289336), (31, 8989680), (35, 7962288), (40, 6967002), (42, 6635240), (48, 5805835), (56, 4976430), (60, 4644668), (62, 4494840), (70, 3981144), (80, 3483501), (84, 3317620), (93, 2996560), (105, 2654096), (112, 2488215), (120, 2322334), (124, 2247420), (140, 1990572), (155, 1797936), (168, 1658810), (186, 1498280), (210, 1327048), (217, 1284240), (240, 1161167), (248, 1123710), (280, 995286), (310, 898968), (336, 829405), (372, 749140), (420, 663524), (434, 642120), (465, 599312), (496, 561855), (560, 497643), (620, 449484), (651, 428080), (744, 374570), (840, 331762), (868, 321060), (930, 299656), (1085, 256848), (1240, 224742), (1302, 214040), (1488, 187285), (1680, 165881), (1736, 160530), (1860, 149828), (2170, 128424), (2480, 112371), (2604, 107020), (3255, 85616), (3472, 80265), (3720, 74914), (4340, 64212), (5208, 53510), (5351, 52080), (6510, 42808), (7440, 37457), (8680, 32106), (10416, 26755), (10702, 26040), (13020, 21404), (16053, 17360)]