16659940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1847}}^1$

素因数の和:1908

約数の個数: 48

約数和(自身を含む): 39118464

約数和(自身を除く): 22458524

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 410, 451, 820, 902, 1804, 1847, 2255, 3694, 4510, 7388, 9020, 9235, 18470, 20317, 36940, 40634, 75727, 81268, 101585, 151454, 203170, 302908, 378635, 406340, 757270, 832997, 1514540, 1665994, 3331988, 4164985, 8329970, 16659940]

約数ペア:

[(1, 16659940), (2, 8329970), (4, 4164985), (5, 3331988), (10, 1665994), (11, 1514540), (20, 832997), (22, 757270), (41, 406340), (44, 378635), (55, 302908), (82, 203170), (110, 151454), (164, 101585), (205, 81268), (220, 75727), (410, 40634), (451, 36940), (820, 20317), (902, 18470), (1804, 9235), (1847, 9020), (2255, 7388), (3694, 4510)]