220139899

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:212

約数の個数: 48

約数和(自身を含む): 280713600

約数和(自身を除く): 60573701

約数列:

[1, 7, 29, 37, 49, 53, 79, 203, 259, 371, 553, 1073, 1421, 1537, 1813, 1961, 2291, 2597, 2923, 3871, 4187, 7511, 10759, 13727, 16037, 20461, 29309, 52577, 56869, 75313, 84767, 96089, 112259, 121423, 143227, 154919, 205163, 398083, 593369, 849961, 1084433, 2786581, 4153583, 4492651, 5949727, 7591031, 31448557, 220139899]

約数ペア:

[(1, 220139899), (7, 31448557), (29, 7591031), (37, 5949727), (49, 4492651), (53, 4153583), (79, 2786581), (203, 1084433), (259, 849961), (371, 593369), (553, 398083), (1073, 205163), (1421, 154919), (1537, 143227), (1813, 121423), (1961, 112259), (2291, 96089), (2597, 84767), (2923, 75313), (3871, 56869), (4187, 52577), (7511, 29309), (10759, 20461), (13727, 16037)]