28121600

素因数分解:

$2^9\times 5^2\times {\mathrm{13}}^3$

素因数の和:67

約数の個数: 120

約数和(自身を含む): 75476940

約数和(自身を除く): 47355340

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 128, 130, 160, 169, 200, 208, 256, 260, 320, 325, 338, 400, 416, 512, 520, 640, 650, 676, 800, 832, 845, 1040, 1280, 1300, 1352, 1600, 1664, 1690, 2080, 2197, 2560, 2600, 2704, 3200, 3328, 3380, 4160, 4225, 4394, 5200, 5408, 6400, 6656, 6760, 8320, 8450, 8788, 10400, 10816, 10985, 12800, 13520, 16640, 16900, 17576, 20800, 21632, 21970, 27040, 33280, 33800, 35152, 41600, 43264, 43940, 54080, 54925, 67600, 70304, 83200, 86528, 87880, 108160, 109850, 135200, 140608, 166400, 175760, 216320, 219700, 270400, 281216, 351520, 432640, 439400, 540800, 562432, 703040, 878800, 1081600, 1124864, 1406080, 1757600, 2163200, 2812160, 3515200, 5624320, 7030400, 14060800, 28121600]

約数ペア:

[(1, 28121600), (2, 14060800), (4, 7030400), (5, 5624320), (8, 3515200), (10, 2812160), (13, 2163200), (16, 1757600), (20, 1406080), (25, 1124864), (26, 1081600), (32, 878800), (40, 703040), (50, 562432), (52, 540800), (64, 439400), (65, 432640), (80, 351520), (100, 281216), (104, 270400), (128, 219700), (130, 216320), (160, 175760), (169, 166400), (200, 140608), (208, 135200), (256, 109850), (260, 108160), (320, 87880), (325, 86528), (338, 83200), (400, 70304), (416, 67600), (512, 54925), (520, 54080), (640, 43940), (650, 43264), (676, 41600), (800, 35152), (832, 33800), (845, 33280), (1040, 27040), (1280, 21970), (1300, 21632), (1352, 20800), (1600, 17576), (1664, 16900), (1690, 16640), (2080, 13520), (2197, 12800), (2560, 10985), (2600, 10816), (2704, 10400), (3200, 8788), (3328, 8450), (3380, 8320), (4160, 6760), (4225, 6656), (4394, 6400), (5200, 5408)]