285000856

素因数分解:

$2^3\times 7^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{499}}^1$

素因数の和:597

約数の個数: 96

約数和(自身を含む): 656640000

約数和(自身を除く): 371639144

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 47, 49, 56, 62, 94, 98, 124, 188, 196, 217, 248, 329, 376, 392, 434, 499, 658, 868, 998, 1316, 1457, 1519, 1736, 1996, 2303, 2632, 2914, 3038, 3493, 3992, 4606, 5828, 6076, 6986, 9212, 10199, 11656, 12152, 13972, 15469, 18424, 20398, 23453, 24451, 27944, 30938, 40796, 46906, 48902, 61876, 71393, 81592, 93812, 97804, 108283, 123752, 142786, 164171, 187624, 195608, 216566, 285572, 328342, 433132, 571144, 656684, 727043, 757981, 866264, 1149197, 1313368, 1454086, 1515962, 2298394, 2908172, 3031924, 4596788, 5089301, 5816344, 6063848, 9193576, 10178602, 20357204, 35625107, 40714408, 71250214, 142500428, 285000856]

約数ペア:

[(1, 285000856), (2, 142500428), (4, 71250214), (7, 40714408), (8, 35625107), (14, 20357204), (28, 10178602), (31, 9193576), (47, 6063848), (49, 5816344), (56, 5089301), (62, 4596788), (94, 3031924), (98, 2908172), (124, 2298394), (188, 1515962), (196, 1454086), (217, 1313368), (248, 1149197), (329, 866264), (376, 757981), (392, 727043), (434, 656684), (499, 571144), (658, 433132), (868, 328342), (998, 285572), (1316, 216566), (1457, 195608), (1519, 187624), (1736, 164171), (1996, 142786), (2303, 123752), (2632, 108283), (2914, 97804), (3038, 93812), (3493, 81592), (3992, 71393), (4606, 61876), (5828, 48902), (6076, 46906), (6986, 40796), (9212, 30938), (10199, 27944), (11656, 24451), (12152, 23453), (13972, 20398), (15469, 18424)]