28239408

素因数分解:

$2^4\times 3^3\times {\mathrm{131}}^1\times {\mathrm{499}}^1$

素因数の和:647

約数の個数: 80

約数和(自身を含む): 81840000

約数和(自身を除く): 53600592

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 108, 131, 144, 216, 262, 393, 432, 499, 524, 786, 998, 1048, 1179, 1497, 1572, 1996, 2096, 2358, 2994, 3144, 3537, 3992, 4491, 4716, 5988, 6288, 7074, 7984, 8982, 9432, 11976, 13473, 14148, 17964, 18864, 23952, 26946, 28296, 35928, 53892, 56592, 65369, 71856, 107784, 130738, 196107, 215568, 261476, 392214, 522952, 588321, 784428, 1045904, 1176642, 1568856, 1764963, 2353284, 3137712, 3529926, 4706568, 7059852, 9413136, 14119704, 28239408]

約数ペア:

[(1, 28239408), (2, 14119704), (3, 9413136), (4, 7059852), (6, 4706568), (8, 3529926), (9, 3137712), (12, 2353284), (16, 1764963), (18, 1568856), (24, 1176642), (27, 1045904), (36, 784428), (48, 588321), (54, 522952), (72, 392214), (108, 261476), (131, 215568), (144, 196107), (216, 130738), (262, 107784), (393, 71856), (432, 65369), (499, 56592), (524, 53892), (786, 35928), (998, 28296), (1048, 26946), (1179, 23952), (1497, 18864), (1572, 17964), (1996, 14148), (2096, 13473), (2358, 11976), (2994, 9432), (3144, 8982), (3537, 7984), (3992, 7074), (4491, 6288), (4716, 5988)]