138618896

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{666437}}^1$

素因数の和:666458

約数の個数: 20

約数和(自身を含む): 289234092

約数和(自身を除く): 150615196

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 666437, 1332874, 2665748, 5331496, 8663681, 10662992, 17327362, 34654724, 69309448, 138618896]

約数ペア:

[(1, 138618896), (2, 69309448), (4, 34654724), (8, 17327362), (13, 10662992), (16, 8663681), (26, 5331496), (52, 2665748), (104, 1332874), (208, 666437)]