28132188

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:227

約数の個数: 96

約数和(自身を含む): 78382080

約数和(自身を除く): 50249892

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 53, 71, 84, 89, 106, 142, 159, 178, 212, 213, 267, 284, 318, 356, 371, 426, 497, 534, 623, 636, 742, 852, 994, 1068, 1113, 1246, 1484, 1491, 1869, 1988, 2226, 2492, 2982, 3738, 3763, 4452, 4717, 5964, 6319, 7476, 7526, 9434, 11289, 12638, 14151, 15052, 18868, 18957, 22578, 25276, 26341, 28302, 33019, 37914, 44233, 45156, 52682, 56604, 66038, 75828, 79023, 88466, 99057, 105364, 132076, 132699, 158046, 176932, 198114, 265398, 316092, 334907, 396228, 530796, 669814, 1004721, 1339628, 2009442, 2344349, 4018884, 4688698, 7033047, 9377396, 14066094, 28132188]

約数ペア:

[(1, 28132188), (2, 14066094), (3, 9377396), (4, 7033047), (6, 4688698), (7, 4018884), (12, 2344349), (14, 2009442), (21, 1339628), (28, 1004721), (42, 669814), (53, 530796), (71, 396228), (84, 334907), (89, 316092), (106, 265398), (142, 198114), (159, 176932), (178, 158046), (212, 132699), (213, 132076), (267, 105364), (284, 99057), (318, 88466), (356, 79023), (371, 75828), (426, 66038), (497, 56604), (534, 52682), (623, 45156), (636, 44233), (742, 37914), (852, 33019), (994, 28302), (1068, 26341), (1113, 25276), (1246, 22578), (1484, 18957), (1491, 18868), (1869, 15052), (1988, 14151), (2226, 12638), (2492, 11289), (2982, 9434), (3738, 7526), (3763, 7476), (4452, 6319), (4717, 5964)]