18764760

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{251}}^1$

素因数の和:361

約数の個数: 128

約数和(自身を含む): 65318400

約数和(自身を除く): 46553640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 89, 105, 120, 140, 168, 178, 210, 251, 267, 280, 356, 420, 445, 502, 534, 623, 712, 753, 840, 890, 1004, 1068, 1246, 1255, 1335, 1506, 1757, 1780, 1869, 2008, 2136, 2492, 2510, 2670, 3012, 3115, 3514, 3560, 3738, 3765, 4984, 5020, 5271, 5340, 6024, 6230, 7028, 7476, 7530, 8785, 9345, 10040, 10542, 10680, 12460, 14056, 14952, 15060, 17570, 18690, 21084, 22339, 24920, 26355, 30120, 35140, 37380, 42168, 44678, 52710, 67017, 70280, 74760, 89356, 105420, 111695, 134034, 156373, 178712, 210840, 223390, 268068, 312746, 335085, 446780, 469119, 536136, 625492, 670170, 781865, 893560, 938238, 1250984, 1340340, 1563730, 1876476, 2345595, 2680680, 3127460, 3752952, 4691190, 6254920, 9382380, 18764760]

約数ペア:

[(1, 18764760), (2, 9382380), (3, 6254920), (4, 4691190), (5, 3752952), (6, 3127460), (7, 2680680), (8, 2345595), (10, 1876476), (12, 1563730), (14, 1340340), (15, 1250984), (20, 938238), (21, 893560), (24, 781865), (28, 670170), (30, 625492), (35, 536136), (40, 469119), (42, 446780), (56, 335085), (60, 312746), (70, 268068), (84, 223390), (89, 210840), (105, 178712), (120, 156373), (140, 134034), (168, 111695), (178, 105420), (210, 89356), (251, 74760), (267, 70280), (280, 67017), (356, 52710), (420, 44678), (445, 42168), (502, 37380), (534, 35140), (623, 30120), (712, 26355), (753, 24920), (840, 22339), (890, 21084), (1004, 18690), (1068, 17570), (1246, 15060), (1255, 14952), (1335, 14056), (1506, 12460), (1757, 10680), (1780, 10542), (1869, 10040), (2008, 9345), (2136, 8785), (2492, 7530), (2510, 7476), (2670, 7028), (3012, 6230), (3115, 6024), (3514, 5340), (3560, 5271), (3738, 5020), (3765, 4984)]