51075920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{409}}^1$

素因数の和:652

約数の個数: 80

約数和(自身を含む): 136657920

約数和(自身を除く): 85582000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 223, 280, 409, 446, 560, 818, 892, 1115, 1561, 1636, 1784, 2045, 2230, 2863, 3122, 3272, 3568, 4090, 4460, 5726, 6244, 6544, 7805, 8180, 8920, 11452, 12488, 14315, 15610, 16360, 17840, 22904, 24976, 28630, 31220, 32720, 45808, 57260, 62440, 91207, 114520, 124880, 182414, 229040, 364828, 456035, 638449, 729656, 912070, 1276898, 1459312, 1824140, 2553796, 3192245, 3648280, 5107592, 6384490, 7296560, 10215184, 12768980, 25537960, 51075920]

約数ペア:

[(1, 51075920), (2, 25537960), (4, 12768980), (5, 10215184), (7, 7296560), (8, 6384490), (10, 5107592), (14, 3648280), (16, 3192245), (20, 2553796), (28, 1824140), (35, 1459312), (40, 1276898), (56, 912070), (70, 729656), (80, 638449), (112, 456035), (140, 364828), (223, 229040), (280, 182414), (409, 124880), (446, 114520), (560, 91207), (818, 62440), (892, 57260), (1115, 45808), (1561, 32720), (1636, 31220), (1784, 28630), (2045, 24976), (2230, 22904), (2863, 17840), (3122, 16360), (3272, 15610), (3568, 14315), (4090, 12488), (4460, 11452), (5726, 8920), (6244, 8180), (6544, 7805)]