28077858

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{149}}^1$

素因数の和:224

約数の個数: 72

約数和(自身を含む): 66865500

約数和(自身を除く): 38787642

約数列:

[1, 2, 3, 6, 9, 18, 19, 29, 38, 57, 58, 87, 114, 149, 171, 174, 261, 298, 342, 361, 447, 522, 551, 722, 894, 1083, 1102, 1341, 1653, 2166, 2682, 2831, 3249, 3306, 4321, 4959, 5662, 6498, 8493, 8642, 9918, 10469, 12963, 16986, 20938, 25479, 25926, 31407, 38889, 50958, 53789, 62814, 77778, 82099, 94221, 107578, 161367, 164198, 188442, 246297, 322734, 484101, 492594, 738891, 968202, 1477782, 1559881, 3119762, 4679643, 9359286, 14038929, 28077858]

約数ペア:

[(1, 28077858), (2, 14038929), (3, 9359286), (6, 4679643), (9, 3119762), (18, 1559881), (19, 1477782), (29, 968202), (38, 738891), (57, 492594), (58, 484101), (87, 322734), (114, 246297), (149, 188442), (171, 164198), (174, 161367), (261, 107578), (298, 94221), (342, 82099), (361, 77778), (447, 62814), (522, 53789), (551, 50958), (722, 38889), (894, 31407), (1083, 25926), (1102, 25479), (1341, 20938), (1653, 16986), (2166, 12963), (2682, 10469), (2831, 9918), (3249, 8642), (3306, 8493), (4321, 6498), (4959, 5662)]