28768880

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{179}}^1$

素因数の和:247

約数の個数: 120

約数和(自身を含む): 80151120

約数和(自身を除く): 51382240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 41, 49, 56, 70, 80, 82, 98, 112, 140, 164, 179, 196, 205, 245, 280, 287, 328, 358, 392, 410, 490, 560, 574, 656, 716, 784, 820, 895, 980, 1148, 1253, 1432, 1435, 1640, 1790, 1960, 2009, 2296, 2506, 2864, 2870, 3280, 3580, 3920, 4018, 4592, 5012, 5740, 6265, 7160, 7339, 8036, 8771, 10024, 10045, 11480, 12530, 14320, 14678, 16072, 17542, 20048, 20090, 22960, 25060, 29356, 32144, 35084, 36695, 40180, 43855, 50120, 51373, 58712, 70168, 73390, 80360, 87710, 100240, 102746, 117424, 140336, 146780, 160720, 175420, 205492, 256865, 293560, 350840, 359611, 410984, 513730, 587120, 701680, 719222, 821968, 1027460, 1438444, 1798055, 2054920, 2876888, 3596110, 4109840, 5753776, 7192220, 14384440, 28768880]

約数ペア:

[(1, 28768880), (2, 14384440), (4, 7192220), (5, 5753776), (7, 4109840), (8, 3596110), (10, 2876888), (14, 2054920), (16, 1798055), (20, 1438444), (28, 1027460), (35, 821968), (40, 719222), (41, 701680), (49, 587120), (56, 513730), (70, 410984), (80, 359611), (82, 350840), (98, 293560), (112, 256865), (140, 205492), (164, 175420), (179, 160720), (196, 146780), (205, 140336), (245, 117424), (280, 102746), (287, 100240), (328, 87710), (358, 80360), (392, 73390), (410, 70168), (490, 58712), (560, 51373), (574, 50120), (656, 43855), (716, 40180), (784, 36695), (820, 35084), (895, 32144), (980, 29356), (1148, 25060), (1253, 22960), (1432, 20090), (1435, 20048), (1640, 17542), (1790, 16072), (1960, 14678), (2009, 14320), (2296, 12530), (2506, 11480), (2864, 10045), (2870, 10024), (3280, 8771), (3580, 8036), (3920, 7339), (4018, 7160), (4592, 6265), (5012, 5740)]