71337980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{509557}}^1$

素因数の和:509573

約数の個数: 24

約数和(自身を含む): 171211488

約数和(自身を除く): 99873508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 509557, 1019114, 2038228, 2547785, 3566899, 5095570, 7133798, 10191140, 14267596, 17834495, 35668990, 71337980]

約数ペア:

[(1, 71337980), (2, 35668990), (4, 17834495), (5, 14267596), (7, 10191140), (10, 7133798), (14, 5095570), (20, 3566899), (28, 2547785), (35, 2038228), (70, 1019114), (140, 509557)]