138992420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{141829}}^1$

素因数の和:141852

約数の個数: 36

約数和(自身を含む): 339541020

約数和(自身を除く): 200548600

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 141829, 283658, 567316, 709145, 992803, 1418290, 1985606, 2836580, 3971212, 4964015, 6949621, 9928030, 13899242, 19856060, 27798484, 34748105, 69496210, 138992420]

約数ペア:

[(1, 138992420), (2, 69496210), (4, 34748105), (5, 27798484), (7, 19856060), (10, 13899242), (14, 9928030), (20, 6949621), (28, 4964015), (35, 3971212), (49, 2836580), (70, 1985606), (98, 1418290), (140, 992803), (196, 709145), (245, 567316), (490, 283658), (980, 141829)]