17980704

素因数分解:

$2^5\times 3^4\times 7^1\times {\mathrm{991}}^1$

素因数の和:1020

約数の個数: 120

約数和(自身を含む): 60496128

約数和(自身を除く): 42515424

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 32, 36, 42, 48, 54, 56, 63, 72, 81, 84, 96, 108, 112, 126, 144, 162, 168, 189, 216, 224, 252, 288, 324, 336, 378, 432, 504, 567, 648, 672, 756, 864, 991, 1008, 1134, 1296, 1512, 1982, 2016, 2268, 2592, 2973, 3024, 3964, 4536, 5946, 6048, 6937, 7928, 8919, 9072, 11892, 13874, 15856, 17838, 18144, 20811, 23784, 26757, 27748, 31712, 35676, 41622, 47568, 53514, 55496, 62433, 71352, 80271, 83244, 95136, 107028, 110992, 124866, 142704, 160542, 166488, 187299, 214056, 221984, 249732, 285408, 321084, 332976, 374598, 428112, 499464, 561897, 642168, 665952, 749196, 856224, 998928, 1123794, 1284336, 1498392, 1997856, 2247588, 2568672, 2996784, 4495176, 5993568, 8990352, 17980704]

約数ペア:

[(1, 17980704), (2, 8990352), (3, 5993568), (4, 4495176), (6, 2996784), (7, 2568672), (8, 2247588), (9, 1997856), (12, 1498392), (14, 1284336), (16, 1123794), (18, 998928), (21, 856224), (24, 749196), (27, 665952), (28, 642168), (32, 561897), (36, 499464), (42, 428112), (48, 374598), (54, 332976), (56, 321084), (63, 285408), (72, 249732), (81, 221984), (84, 214056), (96, 187299), (108, 166488), (112, 160542), (126, 142704), (144, 124866), (162, 110992), (168, 107028), (189, 95136), (216, 83244), (224, 80271), (252, 71352), (288, 62433), (324, 55496), (336, 53514), (378, 47568), (432, 41622), (504, 35676), (567, 31712), (648, 27748), (672, 26757), (756, 23784), (864, 20811), (991, 18144), (1008, 17838), (1134, 15856), (1296, 13874), (1512, 11892), (1982, 9072), (2016, 8919), (2268, 7928), (2592, 6937), (2973, 6048), (3024, 5946), (3964, 4536)]