13980680

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{1019}}^1$

素因数の和:1051

約数の個数: 64

約数和(自身を含む): 36720000

約数和(自身を除く): 22739320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 343, 392, 490, 686, 980, 1019, 1372, 1715, 1960, 2038, 2744, 3430, 4076, 5095, 6860, 7133, 8152, 10190, 13720, 14266, 20380, 28532, 35665, 40760, 49931, 57064, 71330, 99862, 142660, 199724, 249655, 285320, 349517, 399448, 499310, 699034, 998620, 1398068, 1747585, 1997240, 2796136, 3495170, 6990340, 13980680]

約数ペア:

[(1, 13980680), (2, 6990340), (4, 3495170), (5, 2796136), (7, 1997240), (8, 1747585), (10, 1398068), (14, 998620), (20, 699034), (28, 499310), (35, 399448), (40, 349517), (49, 285320), (56, 249655), (70, 199724), (98, 142660), (140, 99862), (196, 71330), (245, 57064), (280, 49931), (343, 40760), (392, 35665), (490, 28532), (686, 20380), (980, 14266), (1019, 13720), (1372, 10190), (1715, 8152), (1960, 7133), (2038, 6860), (2744, 5095), (3430, 4076)]