20571717740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{146940841}}^1$

素因数の和:146940857

約数の個数: 24

約数和(自身を含む): 49372122912

約数和(自身を除く): 28800405172

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 146940841, 293881682, 587763364, 734704205, 1028585887, 1469408410, 2057171774, 2938816820, 4114343548, 5142929435, 10285858870, 20571717740]

約数ペア:

[(1, 20571717740), (2, 10285858870), (4, 5142929435), (5, 4114343548), (7, 2938816820), (10, 2057171774), (14, 1469408410), (20, 1028585887), (28, 734704205), (35, 587763364), (70, 293881682), (140, 146940841)]