51657760

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{599}}^1$

素因数の和:639

約数の個数: 144

約数和(自身を含む): 155131200

約数和(自身を除く): 103473440

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 49, 55, 56, 70, 77, 80, 88, 98, 110, 112, 140, 154, 160, 176, 196, 220, 224, 245, 280, 308, 352, 385, 392, 440, 490, 539, 560, 599, 616, 770, 784, 880, 980, 1078, 1120, 1198, 1232, 1540, 1568, 1760, 1960, 2156, 2396, 2464, 2695, 2995, 3080, 3920, 4193, 4312, 4792, 5390, 5990, 6160, 6589, 7840, 8386, 8624, 9584, 10780, 11980, 12320, 13178, 16772, 17248, 19168, 20965, 21560, 23960, 26356, 29351, 32945, 33544, 41930, 43120, 46123, 47920, 52712, 58702, 65890, 67088, 83860, 86240, 92246, 95840, 105424, 117404, 131780, 134176, 146755, 167720, 184492, 210848, 230615, 234808, 263560, 293510, 322861, 335440, 368984, 461230, 469616, 527120, 587020, 645722, 670880, 737968, 922460, 939232, 1054240, 1174040, 1291444, 1475936, 1614305, 1844920, 2348080, 2582888, 3228610, 3689840, 4696160, 5165776, 6457220, 7379680, 10331552, 12914440, 25828880, 51657760]

約数ペア:

[(1, 51657760), (2, 25828880), (4, 12914440), (5, 10331552), (7, 7379680), (8, 6457220), (10, 5165776), (11, 4696160), (14, 3689840), (16, 3228610), (20, 2582888), (22, 2348080), (28, 1844920), (32, 1614305), (35, 1475936), (40, 1291444), (44, 1174040), (49, 1054240), (55, 939232), (56, 922460), (70, 737968), (77, 670880), (80, 645722), (88, 587020), (98, 527120), (110, 469616), (112, 461230), (140, 368984), (154, 335440), (160, 322861), (176, 293510), (196, 263560), (220, 234808), (224, 230615), (245, 210848), (280, 184492), (308, 167720), (352, 146755), (385, 134176), (392, 131780), (440, 117404), (490, 105424), (539, 95840), (560, 92246), (599, 86240), (616, 83860), (770, 67088), (784, 65890), (880, 58702), (980, 52712), (1078, 47920), (1120, 46123), (1198, 43120), (1232, 41930), (1540, 33544), (1568, 32945), (1760, 29351), (1960, 26356), (2156, 23960), (2396, 21560), (2464, 20965), (2695, 19168), (2995, 17248), (3080, 16772), (3920, 13178), (4193, 12320), (4312, 11980), (4792, 10780), (5390, 9584), (5990, 8624), (6160, 8386), (6589, 7840)]