131851720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1$

素因数の和:168

約数の個数: 256

約数和(自身を含む): 413683200

約数和(自身を除く): 281831480

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 20, 22, 26, 28, 35, 37, 40, 44, 52, 55, 56, 65, 70, 74, 77, 88, 89, 91, 104, 110, 130, 140, 143, 148, 154, 178, 182, 185, 220, 259, 260, 280, 286, 296, 308, 356, 364, 370, 385, 407, 440, 445, 455, 481, 518, 520, 572, 616, 623, 712, 715, 728, 740, 770, 814, 890, 910, 962, 979, 1001, 1036, 1144, 1157, 1246, 1295, 1430, 1480, 1540, 1628, 1780, 1820, 1924, 1958, 2002, 2035, 2072, 2314, 2405, 2492, 2590, 2849, 2860, 3080, 3115, 3256, 3293, 3367, 3560, 3640, 3848, 3916, 4004, 4070, 4628, 4810, 4895, 4984, 5005, 5180, 5291, 5698, 5720, 5785, 6230, 6586, 6734, 6853, 7832, 8008, 8099, 8140, 9256, 9620, 9790, 10010, 10360, 10582, 11396, 11570, 12460, 12727, 13172, 13468, 13706, 14245, 16198, 16280, 16465, 16835, 19240, 19580, 20020, 21164, 22792, 23051, 23140, 24920, 25454, 26344, 26455, 26936, 27412, 28490, 32396, 32930, 33670, 34265, 36223, 37037, 39160, 40040, 40495, 42328, 42809, 46102, 46280, 50908, 52910, 54824, 56980, 63635, 64792, 65860, 67340, 68530, 72446, 74074, 80990, 85618, 89089, 92204, 101816, 105820, 113960, 115255, 127270, 131720, 134680, 137060, 144892, 148148, 161980, 171236, 178178, 181115, 184408, 185185, 211640, 214045, 230510, 253561, 254540, 274120, 289784, 296296, 299663, 323960, 342472, 356356, 362230, 370370, 428090, 445445, 461020, 470899, 507122, 509080, 599326, 712712, 724460, 740740, 856180, 890890, 922040, 941798, 1014244, 1198652, 1267805, 1448920, 1481480, 1498315, 1712360, 1781780, 1883596, 2028488, 2354495, 2397304, 2535610, 2996630, 3296293, 3563560, 3767192, 4708990, 5071220, 5993260, 6592586, 9417980, 10142440, 11986520, 13185172, 16481465, 18835960, 26370344, 32962930, 65925860, 131851720]

約数ペア:

[(1, 131851720), (2, 65925860), (4, 32962930), (5, 26370344), (7, 18835960), (8, 16481465), (10, 13185172), (11, 11986520), (13, 10142440), (14, 9417980), (20, 6592586), (22, 5993260), (26, 5071220), (28, 4708990), (35, 3767192), (37, 3563560), (40, 3296293), (44, 2996630), (52, 2535610), (55, 2397304), (56, 2354495), (65, 2028488), (70, 1883596), (74, 1781780), (77, 1712360), (88, 1498315), (89, 1481480), (91, 1448920), (104, 1267805), (110, 1198652), (130, 1014244), (140, 941798), (143, 922040), (148, 890890), (154, 856180), (178, 740740), (182, 724460), (185, 712712), (220, 599326), (259, 509080), (260, 507122), (280, 470899), (286, 461020), (296, 445445), (308, 428090), (356, 370370), (364, 362230), (370, 356356), (385, 342472), (407, 323960), (440, 299663), (445, 296296), (455, 289784), (481, 274120), (518, 254540), (520, 253561), (572, 230510), (616, 214045), (623, 211640), (712, 185185), (715, 184408), (728, 181115), (740, 178178), (770, 171236), (814, 161980), (890, 148148), (910, 144892), (962, 137060), (979, 134680), (1001, 131720), (1036, 127270), (1144, 115255), (1157, 113960), (1246, 105820), (1295, 101816), (1430, 92204), (1480, 89089), (1540, 85618), (1628, 80990), (1780, 74074), (1820, 72446), (1924, 68530), (1958, 67340), (2002, 65860), (2035, 64792), (2072, 63635), (2314, 56980), (2405, 54824), (2492, 52910), (2590, 50908), (2849, 46280), (2860, 46102), (3080, 42809), (3115, 42328), (3256, 40495), (3293, 40040), (3367, 39160), (3560, 37037), (3640, 36223), (3848, 34265), (3916, 33670), (4004, 32930), (4070, 32396), (4628, 28490), (4810, 27412), (4895, 26936), (4984, 26455), (5005, 26344), (5180, 25454), (5291, 24920), (5698, 23140), (5720, 23051), (5785, 22792), (6230, 21164), (6586, 20020), (6734, 19580), (6853, 19240), (7832, 16835), (8008, 16465), (8099, 16280), (8140, 16198), (9256, 14245), (9620, 13706), (9790, 13468), (10010, 13172), (10360, 12727), (10582, 12460), (11396, 11570)]