20769728

素因数分解:

$2^6\times 7^2\times {\mathrm{37}}^1\times {\mathrm{179}}^1$

素因数の和:242

約数の個数: 84

約数和(自身を含む): 49514760

約数和(自身を除く): 28745032

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 37, 49, 56, 64, 74, 98, 112, 148, 179, 196, 224, 259, 296, 358, 392, 448, 518, 592, 716, 784, 1036, 1184, 1253, 1432, 1568, 1813, 2072, 2368, 2506, 2864, 3136, 3626, 4144, 5012, 5728, 6623, 7252, 8288, 8771, 10024, 11456, 13246, 14504, 16576, 17542, 20048, 26492, 29008, 35084, 40096, 46361, 52984, 58016, 70168, 80192, 92722, 105968, 116032, 140336, 185444, 211936, 280672, 324527, 370888, 423872, 561344, 649054, 741776, 1298108, 1483552, 2596216, 2967104, 5192432, 10384864, 20769728]

約数ペア:

[(1, 20769728), (2, 10384864), (4, 5192432), (7, 2967104), (8, 2596216), (14, 1483552), (16, 1298108), (28, 741776), (32, 649054), (37, 561344), (49, 423872), (56, 370888), (64, 324527), (74, 280672), (98, 211936), (112, 185444), (148, 140336), (179, 116032), (196, 105968), (224, 92722), (259, 80192), (296, 70168), (358, 58016), (392, 52984), (448, 46361), (518, 40096), (592, 35084), (716, 29008), (784, 26492), (1036, 20048), (1184, 17542), (1253, 16576), (1432, 14504), (1568, 13246), (1813, 11456), (2072, 10024), (2368, 8771), (2506, 8288), (2864, 7252), (3136, 6623), (3626, 5728), (4144, 5012)]