82531480

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1\times {\mathrm{239}}^1$

素因数の和:436

約数の個数: 64

約数和(自身を含む): 190512000

約数和(自身を除く): 107980520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 97, 178, 194, 239, 356, 388, 445, 478, 485, 712, 776, 890, 956, 970, 1195, 1780, 1912, 1940, 2390, 3560, 3880, 4780, 8633, 9560, 17266, 21271, 23183, 34532, 42542, 43165, 46366, 69064, 85084, 86330, 92732, 106355, 115915, 170168, 172660, 185464, 212710, 231830, 345320, 425420, 463660, 850840, 927320, 2063287, 4126574, 8253148, 10316435, 16506296, 20632870, 41265740, 82531480]

約数ペア:

[(1, 82531480), (2, 41265740), (4, 20632870), (5, 16506296), (8, 10316435), (10, 8253148), (20, 4126574), (40, 2063287), (89, 927320), (97, 850840), (178, 463660), (194, 425420), (239, 345320), (356, 231830), (388, 212710), (445, 185464), (478, 172660), (485, 170168), (712, 115915), (776, 106355), (890, 92732), (956, 86330), (970, 85084), (1195, 69064), (1780, 46366), (1912, 43165), (1940, 42542), (2390, 34532), (3560, 23183), (3880, 21271), (4780, 17266), (8633, 9560)]