38940890

素因数分解:

$2^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{9521}}^1$

素因数の和:9937

約数の個数: 16

約数和(自身を含む): 70272360

約数和(自身を除く): 31331470

約数列:

[1, 2, 5, 10, 409, 818, 2045, 4090, 9521, 19042, 47605, 95210, 3894089, 7788178, 19470445, 38940890]

約数ペア:

[(1, 38940890), (2, 19470445), (5, 7788178), (10, 3894089), (409, 95210), (818, 47605), (2045, 19042), (4090, 9521)]