257218998

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^2\times {\mathrm{149}}^1\times {\mathrm{797}}^1$

素因数の和:989

約数の個数: 48

約数和(自身を含む): 547268400

約数和(自身を除く): 290049402

約数列:

[1, 2, 3, 6, 19, 38, 57, 114, 149, 298, 361, 447, 722, 797, 894, 1083, 1594, 2166, 2391, 2831, 4782, 5662, 8493, 15143, 16986, 30286, 45429, 53789, 90858, 107578, 118753, 161367, 237506, 287717, 322734, 356259, 575434, 712518, 863151, 1726302, 2256307, 4512614, 6768921, 13537842, 42869833, 85739666, 128609499, 257218998]

約数ペア:

[(1, 257218998), (2, 128609499), (3, 85739666), (6, 42869833), (19, 13537842), (38, 6768921), (57, 4512614), (114, 2256307), (149, 1726302), (298, 863151), (361, 712518), (447, 575434), (722, 356259), (797, 322734), (894, 287717), (1083, 237506), (1594, 161367), (2166, 118753), (2391, 107578), (2831, 90858), (4782, 53789), (5662, 45429), (8493, 30286), (15143, 16986)]