28187532

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:323

約数の個数: 72

約数和(自身を含む): 73993920

約数和(自身を除く): 45806388

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 129, 131, 139, 172, 258, 262, 278, 387, 393, 417, 516, 524, 556, 774, 786, 834, 1179, 1251, 1548, 1572, 1668, 2358, 2502, 4716, 5004, 5633, 5977, 11266, 11954, 16899, 17931, 18209, 22532, 23908, 33798, 35862, 36418, 50697, 53793, 54627, 67596, 71724, 72836, 101394, 107586, 109254, 163881, 202788, 215172, 218508, 327762, 655524, 782987, 1565974, 2348961, 3131948, 4697922, 7046883, 9395844, 14093766, 28187532]

約数ペア:

[(1, 28187532), (2, 14093766), (3, 9395844), (4, 7046883), (6, 4697922), (9, 3131948), (12, 2348961), (18, 1565974), (36, 782987), (43, 655524), (86, 327762), (129, 218508), (131, 215172), (139, 202788), (172, 163881), (258, 109254), (262, 107586), (278, 101394), (387, 72836), (393, 71724), (417, 67596), (516, 54627), (524, 53793), (556, 50697), (774, 36418), (786, 35862), (834, 33798), (1179, 23908), (1251, 22532), (1548, 18209), (1572, 17931), (1668, 16899), (2358, 11954), (2502, 11266), (4716, 5977), (5004, 5633)]