20516360

素因数分解:

$2^3\times 5^1\times {\mathrm{353}}^1\times {\mathrm{1453}}^1$

素因数の和:1817

約数の個数: 32

約数和(自身を含む): 46324440

約数和(自身を除く): 25808080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 353, 706, 1412, 1453, 1765, 2824, 2906, 3530, 5812, 7060, 7265, 11624, 14120, 14530, 29060, 58120, 512909, 1025818, 2051636, 2564545, 4103272, 5129090, 10258180, 20516360]

約数ペア:

[(1, 20516360), (2, 10258180), (4, 5129090), (5, 4103272), (8, 2564545), (10, 2051636), (20, 1025818), (40, 512909), (353, 58120), (706, 29060), (1412, 14530), (1453, 14120), (1765, 11624), (2824, 7265), (2906, 7060), (3530, 5812)]