18737488

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{227}}^1$

素因数の和:320

約数の個数: 80

約数和(自身を含む): 46139904

約数和(自身を除く): 27402416

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 67, 77, 88, 112, 134, 154, 176, 227, 268, 308, 454, 469, 536, 616, 737, 908, 938, 1072, 1232, 1474, 1589, 1816, 1876, 2497, 2948, 3178, 3632, 3752, 4994, 5159, 5896, 6356, 7504, 9988, 10318, 11792, 12712, 15209, 17479, 19976, 20636, 25424, 30418, 34958, 39952, 41272, 60836, 69916, 82544, 106463, 121672, 139832, 167299, 212926, 243344, 279664, 334598, 425852, 669196, 851704, 1171093, 1338392, 1703408, 2342186, 2676784, 4684372, 9368744, 18737488]

約数ペア:

[(1, 18737488), (2, 9368744), (4, 4684372), (7, 2676784), (8, 2342186), (11, 1703408), (14, 1338392), (16, 1171093), (22, 851704), (28, 669196), (44, 425852), (56, 334598), (67, 279664), (77, 243344), (88, 212926), (112, 167299), (134, 139832), (154, 121672), (176, 106463), (227, 82544), (268, 69916), (308, 60836), (454, 41272), (469, 39952), (536, 34958), (616, 30418), (737, 25424), (908, 20636), (938, 19976), (1072, 17479), (1232, 15209), (1474, 12712), (1589, 11792), (1816, 10318), (1876, 9988), (2497, 7504), (2948, 6356), (3178, 5896), (3632, 5159), (3752, 4994)]