18718572

素因数分解:

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

素因数の和:223

約数の個数: 72

約数和(自身を含む): 48006000

約数和(自身を除く): 29287428

約数列:

[1, 2, 3, 4, 6, 12, 19, 29, 38, 57, 58, 76, 87, 114, 116, 149, 174, 228, 298, 348, 361, 447, 551, 596, 722, 894, 1083, 1102, 1444, 1653, 1788, 2166, 2204, 2831, 3306, 4321, 4332, 5662, 6612, 8493, 8642, 10469, 11324, 12963, 16986, 17284, 20938, 25926, 31407, 33972, 41876, 51852, 53789, 62814, 82099, 107578, 125628, 161367, 164198, 215156, 246297, 322734, 328396, 492594, 645468, 985188, 1559881, 3119762, 4679643, 6239524, 9359286, 18718572]

約数ペア:

[(1, 18718572), (2, 9359286), (3, 6239524), (4, 4679643), (6, 3119762), (12, 1559881), (19, 985188), (29, 645468), (38, 492594), (57, 328396), (58, 322734), (76, 246297), (87, 215156), (114, 164198), (116, 161367), (149, 125628), (174, 107578), (228, 82099), (298, 62814), (348, 53789), (361, 51852), (447, 41876), (551, 33972), (596, 31407), (722, 25926), (894, 20938), (1083, 17284), (1102, 16986), (1444, 12963), (1653, 11324), (1788, 10469), (2166, 8642), (2204, 8493), (2831, 6612), (3306, 5662), (4321, 4332)]