39852800

素因数分解:

$2^8\times 5^2\times {\mathrm{13}}^1\times {\mathrm{479}}^1$

素因数の和:518

約数の個数: 108

約数和(自身を含む): 106451520

約数和(自身を除く): 66598720

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, 520, 640, 650, 800, 832, 958, 1040, 1280, 1300, 1600, 1664, 1916, 2080, 2395, 2600, 3200, 3328, 3832, 4160, 4790, 5200, 6227, 6400, 7664, 8320, 9580, 10400, 11975, 12454, 15328, 16640, 19160, 20800, 23950, 24908, 30656, 31135, 38320, 41600, 47900, 49816, 61312, 62270, 76640, 83200, 95800, 99632, 122624, 124540, 153280, 155675, 191600, 199264, 249080, 306560, 311350, 383200, 398528, 498160, 613120, 622700, 766400, 797056, 996320, 1245400, 1532800, 1594112, 1992640, 2490800, 3065600, 3985280, 4981600, 7970560, 9963200, 19926400, 39852800]

約数ペア:

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