81192320

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{607}}^1$

素因数の和:656

約数の個数: 128

約数和(自身を含む): 223257600

約数和(自身を除く): 142065280

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 32, 38, 40, 44, 55, 64, 76, 80, 88, 95, 110, 128, 152, 160, 176, 190, 209, 220, 304, 320, 352, 380, 418, 440, 607, 608, 640, 704, 760, 836, 880, 1045, 1214, 1216, 1408, 1520, 1672, 1760, 2090, 2428, 2432, 3035, 3040, 3344, 3520, 4180, 4856, 6070, 6080, 6677, 6688, 7040, 8360, 9712, 11533, 12140, 12160, 13354, 13376, 16720, 19424, 23066, 24280, 26708, 26752, 33385, 33440, 38848, 46132, 48560, 53416, 57665, 66770, 66880, 77696, 92264, 97120, 106832, 115330, 126863, 133540, 133760, 184528, 194240, 213664, 230660, 253726, 267080, 369056, 388480, 427328, 461320, 507452, 534160, 634315, 738112, 854656, 922640, 1014904, 1068320, 1268630, 1476224, 1845280, 2029808, 2136640, 2537260, 3690560, 4059616, 4273280, 5074520, 7381120, 8119232, 10149040, 16238464, 20298080, 40596160, 81192320]

約数ペア:

[(1, 81192320), (2, 40596160), (4, 20298080), (5, 16238464), (8, 10149040), (10, 8119232), (11, 7381120), (16, 5074520), (19, 4273280), (20, 4059616), (22, 3690560), (32, 2537260), (38, 2136640), (40, 2029808), (44, 1845280), (55, 1476224), (64, 1268630), (76, 1068320), (80, 1014904), (88, 922640), (95, 854656), (110, 738112), (128, 634315), (152, 534160), (160, 507452), (176, 461320), (190, 427328), (209, 388480), (220, 369056), (304, 267080), (320, 253726), (352, 230660), (380, 213664), (418, 194240), (440, 184528), (607, 133760), (608, 133540), (640, 126863), (704, 115330), (760, 106832), (836, 97120), (880, 92264), (1045, 77696), (1214, 66880), (1216, 66770), (1408, 57665), (1520, 53416), (1672, 48560), (1760, 46132), (2090, 38848), (2428, 33440), (2432, 33385), (3035, 26752), (3040, 26708), (3344, 24280), (3520, 23066), (4180, 19424), (4856, 16720), (6070, 13376), (6080, 13354), (6677, 12160), (6688, 12140), (7040, 11533), (8360, 9712)]