261111760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:166

約数の個数: 240

約数和(自身を含む): 784235520

約数和(自身を除く): 523123760

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 31, 35, 40, 52, 56, 62, 65, 70, 80, 89, 91, 104, 112, 124, 130, 140, 155, 169, 178, 182, 208, 217, 248, 260, 280, 310, 338, 356, 364, 403, 434, 445, 455, 496, 520, 560, 620, 623, 676, 712, 728, 806, 845, 868, 890, 910, 1040, 1085, 1157, 1183, 1240, 1246, 1352, 1424, 1456, 1612, 1690, 1736, 1780, 1820, 2015, 2170, 2314, 2366, 2480, 2492, 2704, 2759, 2821, 3115, 3224, 3380, 3472, 3560, 3640, 4030, 4340, 4628, 4732, 4984, 5239, 5518, 5642, 5785, 5915, 6230, 6448, 6760, 7120, 7280, 8060, 8099, 8680, 9256, 9464, 9968, 10478, 11036, 11284, 11570, 11830, 12460, 13520, 13795, 14105, 15041, 16120, 16198, 17360, 18512, 18928, 19313, 20956, 22072, 22568, 23140, 23660, 24920, 26195, 27590, 28210, 30082, 32240, 32396, 35867, 36673, 38626, 40495, 41912, 44144, 45136, 46280, 47320, 49840, 52390, 55180, 56420, 60164, 64792, 71734, 73346, 75205, 77252, 80990, 83824, 92560, 94640, 96565, 104780, 105287, 110360, 112840, 120328, 129584, 143468, 146692, 150410, 154504, 161980, 179335, 183365, 193130, 209560, 210574, 220720, 225680, 240656, 251069, 286936, 293384, 300820, 309008, 323960, 358670, 366730, 386260, 419120, 421148, 466271, 502138, 526435, 573872, 586768, 601640, 647920, 717340, 733460, 772520, 842296, 932542, 1004276, 1052870, 1203280, 1255345, 1434680, 1466920, 1545040, 1684592, 1865084, 2008552, 2105740, 2331355, 2510690, 2869360, 2933840, 3263897, 3730168, 4017104, 4211480, 4662710, 5021380, 6527794, 7460336, 8422960, 9325420, 10042760, 13055588, 16319485, 18650840, 20085520, 26111176, 32638970, 37301680, 52222352, 65277940, 130555880, 261111760]

約数ペア:

[(1, 261111760), (2, 130555880), (4, 65277940), (5, 52222352), (7, 37301680), (8, 32638970), (10, 26111176), (13, 20085520), (14, 18650840), (16, 16319485), (20, 13055588), (26, 10042760), (28, 9325420), (31, 8422960), (35, 7460336), (40, 6527794), (52, 5021380), (56, 4662710), (62, 4211480), (65, 4017104), (70, 3730168), (80, 3263897), (89, 2933840), (91, 2869360), (104, 2510690), (112, 2331355), (124, 2105740), (130, 2008552), (140, 1865084), (155, 1684592), (169, 1545040), (178, 1466920), (182, 1434680), (208, 1255345), (217, 1203280), (248, 1052870), (260, 1004276), (280, 932542), (310, 842296), (338, 772520), (356, 733460), (364, 717340), (403, 647920), (434, 601640), (445, 586768), (455, 573872), (496, 526435), (520, 502138), (560, 466271), (620, 421148), (623, 419120), (676, 386260), (712, 366730), (728, 358670), (806, 323960), (845, 309008), (868, 300820), (890, 293384), (910, 286936), (1040, 251069), (1085, 240656), (1157, 225680), (1183, 220720), (1240, 210574), (1246, 209560), (1352, 193130), (1424, 183365), (1456, 179335), (1612, 161980), (1690, 154504), (1736, 150410), (1780, 146692), (1820, 143468), (2015, 129584), (2170, 120328), (2314, 112840), (2366, 110360), (2480, 105287), (2492, 104780), (2704, 96565), (2759, 94640), (2821, 92560), (3115, 83824), (3224, 80990), (3380, 77252), (3472, 75205), (3560, 73346), (3640, 71734), (4030, 64792), (4340, 60164), (4628, 56420), (4732, 55180), (4984, 52390), (5239, 49840), (5518, 47320), (5642, 46280), (5785, 45136), (5915, 44144), (6230, 41912), (6448, 40495), (6760, 38626), (7120, 36673), (7280, 35867), (8060, 32396), (8099, 32240), (8680, 30082), (9256, 28210), (9464, 27590), (9968, 26195), (10478, 24920), (11036, 23660), (11284, 23140), (11570, 22568), (11830, 22072), (12460, 20956), (13520, 19313), (13795, 18928), (14105, 18512), (15041, 17360), (16120, 16198)]