51550720

素因数分解:

$2^9\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1549}}^1$

素因数の和:1585

約数の個数: 80

約数和(自身を含む): 133194600

約数和(自身を除く): 81643880

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 512, 520, 640, 832, 1040, 1280, 1549, 1664, 2080, 2560, 3098, 3328, 4160, 6196, 6656, 7745, 8320, 12392, 15490, 16640, 20137, 24784, 30980, 33280, 40274, 49568, 61960, 80548, 99136, 100685, 123920, 161096, 198272, 201370, 247840, 322192, 396544, 402740, 495680, 644384, 793088, 805480, 991360, 1288768, 1610960, 1982720, 2577536, 3221920, 3965440, 5155072, 6443840, 10310144, 12887680, 25775360, 51550720]

約数ペア:

[(1, 51550720), (2, 25775360), (4, 12887680), (5, 10310144), (8, 6443840), (10, 5155072), (13, 3965440), (16, 3221920), (20, 2577536), (26, 1982720), (32, 1610960), (40, 1288768), (52, 991360), (64, 805480), (65, 793088), (80, 644384), (104, 495680), (128, 402740), (130, 396544), (160, 322192), (208, 247840), (256, 201370), (260, 198272), (320, 161096), (416, 123920), (512, 100685), (520, 99136), (640, 80548), (832, 61960), (1040, 49568), (1280, 40274), (1549, 33280), (1664, 30980), (2080, 24784), (2560, 20137), (3098, 16640), (3328, 15490), (4160, 12392), (6196, 8320), (6656, 7745)]