20149240

素因数分解:

$2^3\times 5^1\times {\mathrm{353}}^1\times {\mathrm{1427}}^1$

素因数の和:1791

約数の個数: 32

約数和(自身を含む): 45496080

約数和(自身を除く): 25346840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 353, 706, 1412, 1427, 1765, 2824, 2854, 3530, 5708, 7060, 7135, 11416, 14120, 14270, 28540, 57080, 503731, 1007462, 2014924, 2518655, 4029848, 5037310, 10074620, 20149240]

約数ペア:

[(1, 20149240), (2, 10074620), (4, 5037310), (5, 4029848), (8, 2518655), (10, 2014924), (20, 1007462), (40, 503731), (353, 57080), (706, 28540), (1412, 14270), (1427, 14120), (1765, 11416), (2824, 7135), (2854, 7060), (3530, 5708)]