261768320

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{103}}^1$

素因数の和:171

約数の個数: 192

約数和(自身を含む): 727496640

約数和(自身を除く): 465728320

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 32, 38, 40, 44, 55, 64, 76, 80, 88, 95, 103, 110, 128, 152, 160, 176, 190, 206, 209, 220, 304, 320, 352, 361, 380, 412, 418, 440, 515, 608, 640, 704, 722, 760, 824, 836, 880, 1030, 1045, 1133, 1216, 1408, 1444, 1520, 1648, 1672, 1760, 1805, 1957, 2060, 2090, 2266, 2432, 2888, 3040, 3296, 3344, 3520, 3610, 3914, 3971, 4120, 4180, 4532, 5665, 5776, 6080, 6592, 6688, 7040, 7220, 7828, 7942, 8240, 8360, 9064, 9785, 11330, 11552, 12160, 13184, 13376, 14440, 15656, 15884, 16480, 16720, 18128, 19570, 19855, 21527, 22660, 23104, 26752, 28880, 31312, 31768, 32960, 33440, 36256, 37183, 39140, 39710, 43054, 45320, 46208, 57760, 62624, 63536, 65920, 66880, 72512, 74366, 78280, 79420, 86108, 90640, 107635, 115520, 125248, 127072, 133760, 145024, 148732, 156560, 158840, 172216, 181280, 185915, 215270, 231040, 250496, 254144, 297464, 313120, 317680, 344432, 362560, 371830, 409013, 430540, 508288, 594928, 626240, 635360, 688864, 725120, 743660, 818026, 861080, 1189856, 1252480, 1270720, 1377728, 1487320, 1636052, 1722160, 2045065, 2379712, 2541440, 2755456, 2974640, 3272104, 3444320, 4090130, 4759424, 5949280, 6544208, 6888640, 8180260, 11898560, 13088416, 13777280, 16360520, 23797120, 26176832, 32721040, 52353664, 65442080, 130884160, 261768320]

約数ペア:

[(1, 261768320), (2, 130884160), (4, 65442080), (5, 52353664), (8, 32721040), (10, 26176832), (11, 23797120), (16, 16360520), (19, 13777280), (20, 13088416), (22, 11898560), (32, 8180260), (38, 6888640), (40, 6544208), (44, 5949280), (55, 4759424), (64, 4090130), (76, 3444320), (80, 3272104), (88, 2974640), (95, 2755456), (103, 2541440), (110, 2379712), (128, 2045065), (152, 1722160), (160, 1636052), (176, 1487320), (190, 1377728), (206, 1270720), (209, 1252480), (220, 1189856), (304, 861080), (320, 818026), (352, 743660), (361, 725120), (380, 688864), (412, 635360), (418, 626240), (440, 594928), (515, 508288), (608, 430540), (640, 409013), (704, 371830), (722, 362560), (760, 344432), (824, 317680), (836, 313120), (880, 297464), (1030, 254144), (1045, 250496), (1133, 231040), (1216, 215270), (1408, 185915), (1444, 181280), (1520, 172216), (1648, 158840), (1672, 156560), (1760, 148732), (1805, 145024), (1957, 133760), (2060, 127072), (2090, 125248), (2266, 115520), (2432, 107635), (2888, 90640), (3040, 86108), (3296, 79420), (3344, 78280), (3520, 74366), (3610, 72512), (3914, 66880), (3971, 65920), (4120, 63536), (4180, 62624), (4532, 57760), (5665, 46208), (5776, 45320), (6080, 43054), (6592, 39710), (6688, 39140), (7040, 37183), (7220, 36256), (7828, 33440), (7942, 32960), (8240, 31768), (8360, 31312), (9064, 28880), (9785, 26752), (11330, 23104), (11552, 22660), (12160, 21527), (13184, 19855), (13376, 19570), (14440, 18128), (15656, 16720), (15884, 16480)]