20031290

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{14411}}^1$

素因数の和:14557

約数の個数: 16

約数和(自身を含む): 36318240

約数和(自身を除く): 16286950

約数列:

[1, 2, 5, 10, 139, 278, 695, 1390, 14411, 28822, 72055, 144110, 2003129, 4006258, 10015645, 20031290]

約数ペア:

[(1, 20031290), (2, 10015645), (5, 4006258), (10, 2003129), (139, 144110), (278, 72055), (695, 28822), (1390, 14411)]