20404900

素因数分解:

$2^2\times 5^2\times {\mathrm{107}}^1\times {\mathrm{1907}}^1$

素因数の和:2028

約数の個数: 36

約数和(自身を含む): 44715888

約数和(自身を除く): 24310988

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 107, 214, 428, 535, 1070, 1907, 2140, 2675, 3814, 5350, 7628, 9535, 10700, 19070, 38140, 47675, 95350, 190700, 204049, 408098, 816196, 1020245, 2040490, 4080980, 5101225, 10202450, 20404900]

約数ペア:

[(1, 20404900), (2, 10202450), (4, 5101225), (5, 4080980), (10, 2040490), (20, 1020245), (25, 816196), (50, 408098), (100, 204049), (107, 190700), (214, 95350), (428, 47675), (535, 38140), (1070, 19070), (1907, 10700), (2140, 9535), (2675, 7628), (3814, 5350)]