20437776

素因数分解:

$2^4\times 3^2\times {\mathrm{71}}^1\times {\mathrm{1999}}^1$

素因数の和:2084

約数の個数: 60

約数和(自身を含む): 58032000

約数和(自身を除く): 37594224

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 71, 72, 142, 144, 213, 284, 426, 568, 639, 852, 1136, 1278, 1704, 1999, 2556, 3408, 3998, 5112, 5997, 7996, 10224, 11994, 15992, 17991, 23988, 31984, 35982, 47976, 71964, 95952, 141929, 143928, 283858, 287856, 425787, 567716, 851574, 1135432, 1277361, 1703148, 2270864, 2554722, 3406296, 5109444, 6812592, 10218888, 20437776]

約数ペア:

[(1, 20437776), (2, 10218888), (3, 6812592), (4, 5109444), (6, 3406296), (8, 2554722), (9, 2270864), (12, 1703148), (16, 1277361), (18, 1135432), (24, 851574), (36, 567716), (48, 425787), (71, 287856), (72, 283858), (142, 143928), (144, 141929), (213, 95952), (284, 71964), (426, 47976), (568, 35982), (639, 31984), (852, 23988), (1136, 17991), (1278, 15992), (1704, 11994), (1999, 10224), (2556, 7996), (3408, 5997), (3998, 5112)]