28257516

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{83}}^1\times {\mathrm{193}}^1$

素因数の和:300

約数の個数: 108

約数和(自身を含む): 84527352

約数和(自身を除く): 56269836

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 83, 84, 98, 126, 147, 166, 193, 196, 249, 252, 294, 332, 386, 441, 498, 579, 581, 588, 747, 772, 882, 996, 1158, 1162, 1351, 1494, 1737, 1743, 1764, 2316, 2324, 2702, 2988, 3474, 3486, 4053, 4067, 5229, 5404, 6948, 6972, 8106, 8134, 9457, 10458, 12159, 12201, 16019, 16212, 16268, 18914, 20916, 24318, 24402, 28371, 32038, 36603, 37828, 48057, 48636, 48804, 56742, 64076, 73206, 85113, 96114, 112133, 113484, 144171, 146412, 170226, 192228, 224266, 288342, 336399, 340452, 448532, 576684, 672798, 784931, 1009197, 1345596, 1569862, 2018394, 2354793, 3139724, 4036788, 4709586, 7064379, 9419172, 14128758, 28257516]

約数ペア:

[(1, 28257516), (2, 14128758), (3, 9419172), (4, 7064379), (6, 4709586), (7, 4036788), (9, 3139724), (12, 2354793), (14, 2018394), (18, 1569862), (21, 1345596), (28, 1009197), (36, 784931), (42, 672798), (49, 576684), (63, 448532), (83, 340452), (84, 336399), (98, 288342), (126, 224266), (147, 192228), (166, 170226), (193, 146412), (196, 144171), (249, 113484), (252, 112133), (294, 96114), (332, 85113), (386, 73206), (441, 64076), (498, 56742), (579, 48804), (581, 48636), (588, 48057), (747, 37828), (772, 36603), (882, 32038), (996, 28371), (1158, 24402), (1162, 24318), (1351, 20916), (1494, 18914), (1737, 16268), (1743, 16212), (1764, 16019), (2316, 12201), (2324, 12159), (2702, 10458), (2988, 9457), (3474, 8134), (3486, 8106), (4053, 6972), (4067, 6948), (5229, 5404)]