49990720

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1$

素因数の和:288

約数の個数: 112

約数和(自身を含む): 130960368

約数和(自身を除く): 80969648

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 61, 64, 65, 80, 104, 122, 130, 160, 197, 208, 244, 260, 305, 320, 394, 416, 488, 520, 610, 788, 793, 832, 976, 985, 1040, 1220, 1576, 1586, 1952, 1970, 2080, 2440, 2561, 3152, 3172, 3904, 3940, 3965, 4160, 4880, 5122, 6304, 6344, 7880, 7930, 9760, 10244, 12017, 12608, 12688, 12805, 15760, 15860, 19520, 20488, 24034, 25376, 25610, 31520, 31720, 40976, 48068, 50752, 51220, 60085, 63040, 63440, 81952, 96136, 102440, 120170, 126880, 156221, 163904, 192272, 204880, 240340, 253760, 312442, 384544, 409760, 480680, 624884, 769088, 781105, 819520, 961360, 1249768, 1562210, 1922720, 2499536, 3124420, 3845440, 4999072, 6248840, 9998144, 12497680, 24995360, 49990720]

約数ペア:

[(1, 49990720), (2, 24995360), (4, 12497680), (5, 9998144), (8, 6248840), (10, 4999072), (13, 3845440), (16, 3124420), (20, 2499536), (26, 1922720), (32, 1562210), (40, 1249768), (52, 961360), (61, 819520), (64, 781105), (65, 769088), (80, 624884), (104, 480680), (122, 409760), (130, 384544), (160, 312442), (197, 253760), (208, 240340), (244, 204880), (260, 192272), (305, 163904), (320, 156221), (394, 126880), (416, 120170), (488, 102440), (520, 96136), (610, 81952), (788, 63440), (793, 63040), (832, 60085), (976, 51220), (985, 50752), (1040, 48068), (1220, 40976), (1576, 31720), (1586, 31520), (1952, 25610), (1970, 25376), (2080, 24034), (2440, 20488), (2561, 19520), (3152, 15860), (3172, 15760), (3904, 12805), (3940, 12688), (3965, 12608), (4160, 12017), (4880, 10244), (5122, 9760), (6304, 7930), (6344, 7880)]