138889765

素因数分解:

$5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{18287}}^1$

素因数の和:18337

約数の個数: 24

約数和(自身を含む): 200143872

約数和(自身を除く): 61254107

約数列:

[1, 5, 7, 31, 35, 49, 155, 217, 245, 1085, 1519, 7595, 18287, 91435, 128009, 566897, 640045, 896063, 2834485, 3968279, 4480315, 19841395, 27777953, 138889765]

約数ペア:

[(1, 138889765), (5, 27777953), (7, 19841395), (31, 4480315), (35, 3968279), (49, 2834485), (155, 896063), (217, 640045), (245, 566897), (1085, 128009), (1519, 91435), (7595, 18287)]