66609865

素因数分解:

$5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{4457}}^1$

素因数の和:4537

約数の個数: 24

約数和(自身を含む): 94527432

約数和(自身を除く): 27917567

約数列:

[1, 5, 7, 35, 49, 61, 245, 305, 427, 2135, 2989, 4457, 14945, 22285, 31199, 155995, 218393, 271877, 1091965, 1359385, 1903139, 9515695, 13321973, 66609865]

約数ペア:

[(1, 66609865), (5, 13321973), (7, 9515695), (35, 1903139), (49, 1359385), (61, 1091965), (245, 271877), (305, 218393), (427, 155995), (2135, 31199), (2989, 22285), (4457, 14945)]