79705600

素因数分解:

$2^9\times 5^2\times {\mathrm{13}}^1\times {\mathrm{479}}^1$

素因数の和:520

約数の個数: 120

約数和(自身を含む): 213111360

約数和(自身を除く): 133405760

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, 200, 208, 256, 260, 320, 325, 400, 416, 479, 512, 520, 640, 650, 800, 832, 958, 1040, 1280, 1300, 1600, 1664, 1916, 2080, 2395, 2560, 2600, 3200, 3328, 3832, 4160, 4790, 5200, 6227, 6400, 6656, 7664, 8320, 9580, 10400, 11975, 12454, 12800, 15328, 16640, 19160, 20800, 23950, 24908, 30656, 31135, 33280, 38320, 41600, 47900, 49816, 61312, 62270, 76640, 83200, 95800, 99632, 122624, 124540, 153280, 155675, 166400, 191600, 199264, 245248, 249080, 306560, 311350, 383200, 398528, 498160, 613120, 622700, 766400, 797056, 996320, 1226240, 1245400, 1532800, 1594112, 1992640, 2490800, 3065600, 3188224, 3985280, 4981600, 6131200, 7970560, 9963200, 15941120, 19926400, 39852800, 79705600]

約数ペア:

[(1, 79705600), (2, 39852800), (4, 19926400), (5, 15941120), (8, 9963200), (10, 7970560), (13, 6131200), (16, 4981600), (20, 3985280), (25, 3188224), (26, 3065600), (32, 2490800), (40, 1992640), (50, 1594112), (52, 1532800), (64, 1245400), (65, 1226240), (80, 996320), (100, 797056), (104, 766400), (128, 622700), (130, 613120), (160, 498160), (200, 398528), (208, 383200), (256, 311350), (260, 306560), (320, 249080), (325, 245248), (400, 199264), (416, 191600), (479, 166400), (512, 155675), (520, 153280), (640, 124540), (650, 122624), (800, 99632), (832, 95800), (958, 83200), (1040, 76640), (1280, 62270), (1300, 61312), (1600, 49816), (1664, 47900), (1916, 41600), (2080, 38320), (2395, 33280), (2560, 31135), (2600, 30656), (3200, 24908), (3328, 23950), (3832, 20800), (4160, 19160), (4790, 16640), (5200, 15328), (6227, 12800), (6400, 12454), (6656, 11975), (7664, 10400), (8320, 9580)]