261259320

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:258

約数の個数: 256

約数和(自身を含む): 943718400

約数和(自身を除く): 682459080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 31, 35, 40, 42, 56, 60, 62, 70, 79, 84, 93, 105, 120, 124, 127, 140, 155, 158, 168, 186, 210, 217, 237, 248, 254, 280, 310, 316, 372, 381, 395, 420, 434, 465, 474, 508, 553, 620, 632, 635, 651, 744, 762, 790, 840, 868, 889, 930, 948, 1016, 1085, 1106, 1185, 1240, 1270, 1302, 1524, 1580, 1659, 1736, 1778, 1860, 1896, 1905, 2170, 2212, 2370, 2449, 2540, 2604, 2667, 2765, 3048, 3160, 3255, 3318, 3556, 3720, 3810, 3937, 4340, 4424, 4445, 4740, 4898, 5080, 5208, 5334, 5530, 6510, 6636, 7112, 7347, 7620, 7874, 8295, 8680, 8890, 9480, 9796, 10033, 10668, 11060, 11811, 12245, 13020, 13272, 13335, 14694, 15240, 15748, 16590, 17143, 17780, 19592, 19685, 20066, 21336, 22120, 23622, 24490, 26040, 26670, 27559, 29388, 30099, 31496, 33180, 34286, 35560, 36735, 39370, 40132, 47244, 48980, 50165, 51429, 53340, 55118, 58776, 59055, 60198, 66360, 68572, 70231, 73470, 78740, 80264, 82677, 85715, 94488, 97960, 100330, 102858, 106680, 110236, 118110, 120396, 137144, 137795, 140462, 146940, 150495, 157480, 165354, 171430, 200660, 205716, 210693, 220472, 236220, 240792, 257145, 275590, 280924, 293880, 300990, 311023, 330708, 342860, 351155, 401320, 411432, 413385, 421386, 472440, 514290, 551180, 561848, 601980, 622046, 661416, 685720, 702310, 826770, 842772, 933069, 1028580, 1053465, 1102360, 1203960, 1244092, 1404620, 1555115, 1653540, 1685544, 1866138, 2057160, 2106930, 2177161, 2488184, 2809240, 3110230, 3307080, 3732276, 4213860, 4354322, 4665345, 6220460, 6531483, 7464552, 8427720, 8708644, 9330690, 10885805, 12440920, 13062966, 17417288, 18661380, 21771610, 26125932, 32657415, 37322760, 43543220, 52251864, 65314830, 87086440, 130629660, 261259320]

約数ペア:

[(1, 261259320), (2, 130629660), (3, 87086440), (4, 65314830), (5, 52251864), (6, 43543220), (7, 37322760), (8, 32657415), (10, 26125932), (12, 21771610), (14, 18661380), (15, 17417288), (20, 13062966), (21, 12440920), (24, 10885805), (28, 9330690), (30, 8708644), (31, 8427720), (35, 7464552), (40, 6531483), (42, 6220460), (56, 4665345), (60, 4354322), (62, 4213860), (70, 3732276), (79, 3307080), (84, 3110230), (93, 2809240), (105, 2488184), (120, 2177161), (124, 2106930), (127, 2057160), (140, 1866138), (155, 1685544), (158, 1653540), (168, 1555115), (186, 1404620), (210, 1244092), (217, 1203960), (237, 1102360), (248, 1053465), (254, 1028580), (280, 933069), (310, 842772), (316, 826770), (372, 702310), (381, 685720), (395, 661416), (420, 622046), (434, 601980), (465, 561848), (474, 551180), (508, 514290), (553, 472440), (620, 421386), (632, 413385), (635, 411432), (651, 401320), (744, 351155), (762, 342860), (790, 330708), (840, 311023), (868, 300990), (889, 293880), (930, 280924), (948, 275590), (1016, 257145), (1085, 240792), (1106, 236220), (1185, 220472), (1240, 210693), (1270, 205716), (1302, 200660), (1524, 171430), (1580, 165354), (1659, 157480), (1736, 150495), (1778, 146940), (1860, 140462), (1896, 137795), (1905, 137144), (2170, 120396), (2212, 118110), (2370, 110236), (2449, 106680), (2540, 102858), (2604, 100330), (2667, 97960), (2765, 94488), (3048, 85715), (3160, 82677), (3255, 80264), (3318, 78740), (3556, 73470), (3720, 70231), (3810, 68572), (3937, 66360), (4340, 60198), (4424, 59055), (4445, 58776), (4740, 55118), (4898, 53340), (5080, 51429), (5208, 50165), (5334, 48980), (5530, 47244), (6510, 40132), (6636, 39370), (7112, 36735), (7347, 35560), (7620, 34286), (7874, 33180), (8295, 31496), (8680, 30099), (8890, 29388), (9480, 27559), (9796, 26670), (10033, 26040), (10668, 24490), (11060, 23622), (11811, 22120), (12245, 21336), (13020, 20066), (13272, 19685), (13335, 19592), (14694, 17780), (15240, 17143), (15748, 16590)]