256961520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{263}}^1$

素因数の和:364

約数の個数: 240

約数和(自身を含む): 919226880

約数和(自身を除く): 662265360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 36, 40, 45, 46, 48, 59, 60, 69, 72, 80, 90, 92, 115, 118, 120, 138, 144, 177, 180, 184, 207, 230, 236, 240, 263, 276, 295, 345, 354, 360, 368, 414, 460, 472, 526, 531, 552, 590, 690, 708, 720, 789, 828, 885, 920, 944, 1035, 1052, 1062, 1104, 1180, 1315, 1357, 1380, 1416, 1578, 1656, 1770, 1840, 2070, 2104, 2124, 2360, 2367, 2630, 2655, 2714, 2760, 2832, 3156, 3312, 3540, 3945, 4071, 4140, 4208, 4248, 4720, 4734, 5260, 5310, 5428, 5520, 6049, 6312, 6785, 7080, 7890, 8142, 8280, 8496, 9468, 10520, 10620, 10856, 11835, 12098, 12213, 12624, 13570, 14160, 15517, 15780, 16284, 16560, 18147, 18936, 20355, 21040, 21240, 21712, 23670, 24196, 24426, 27140, 30245, 31034, 31560, 32568, 36294, 37872, 40710, 42480, 46551, 47340, 48392, 48852, 54280, 54441, 60490, 61065, 62068, 63120, 65136, 72588, 77585, 81420, 90735, 93102, 94680, 96784, 97704, 108560, 108882, 120980, 122130, 124136, 139653, 145176, 155170, 162840, 181470, 186204, 189360, 195408, 217764, 232755, 241960, 244260, 248272, 272205, 279306, 290352, 310340, 325680, 356891, 362940, 372408, 435528, 465510, 483920, 488520, 544410, 558612, 620680, 698265, 713782, 725880, 744816, 871056, 931020, 977040, 1070673, 1088820, 1117224, 1241360, 1396530, 1427564, 1451760, 1784455, 1862040, 2141346, 2177640, 2234448, 2793060, 2855128, 3212019, 3568910, 3724080, 4282692, 4355280, 5353365, 5586120, 5710256, 6424038, 7137820, 8565384, 10706730, 11172240, 12848076, 14275640, 16060095, 17130768, 21413460, 25696152, 28551280, 32120190, 42826920, 51392304, 64240380, 85653840, 128480760, 256961520]

約数ペア:

[(1, 256961520), (2, 128480760), (3, 85653840), (4, 64240380), (5, 51392304), (6, 42826920), (8, 32120190), (9, 28551280), (10, 25696152), (12, 21413460), (15, 17130768), (16, 16060095), (18, 14275640), (20, 12848076), (23, 11172240), (24, 10706730), (30, 8565384), (36, 7137820), (40, 6424038), (45, 5710256), (46, 5586120), (48, 5353365), (59, 4355280), (60, 4282692), (69, 3724080), (72, 3568910), (80, 3212019), (90, 2855128), (92, 2793060), (115, 2234448), (118, 2177640), (120, 2141346), (138, 1862040), (144, 1784455), (177, 1451760), (180, 1427564), (184, 1396530), (207, 1241360), (230, 1117224), (236, 1088820), (240, 1070673), (263, 977040), (276, 931020), (295, 871056), (345, 744816), (354, 725880), (360, 713782), (368, 698265), (414, 620680), (460, 558612), (472, 544410), (526, 488520), (531, 483920), (552, 465510), (590, 435528), (690, 372408), (708, 362940), (720, 356891), (789, 325680), (828, 310340), (885, 290352), (920, 279306), (944, 272205), (1035, 248272), (1052, 244260), (1062, 241960), (1104, 232755), (1180, 217764), (1315, 195408), (1357, 189360), (1380, 186204), (1416, 181470), (1578, 162840), (1656, 155170), (1770, 145176), (1840, 139653), (2070, 124136), (2104, 122130), (2124, 120980), (2360, 108882), (2367, 108560), (2630, 97704), (2655, 96784), (2714, 94680), (2760, 93102), (2832, 90735), (3156, 81420), (3312, 77585), (3540, 72588), (3945, 65136), (4071, 63120), (4140, 62068), (4208, 61065), (4248, 60490), (4720, 54441), (4734, 54280), (5260, 48852), (5310, 48392), (5428, 47340), (5520, 46551), (6049, 42480), (6312, 40710), (6785, 37872), (7080, 36294), (7890, 32568), (8142, 31560), (8280, 31034), (8496, 30245), (9468, 27140), (10520, 24426), (10620, 24196), (10856, 23670), (11835, 21712), (12098, 21240), (12213, 21040), (12624, 20355), (13570, 18936), (14160, 18147), (15517, 16560), (15780, 16284)]