20364928

素因数分解:

$2^7\times {\mathrm{389}}^1\times {\mathrm{409}}^1$

素因数の和:812

約数の個数: 32

約数和(自身を含む): 40774500

約数和(自身を除く): 20409572

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 389, 409, 778, 818, 1556, 1636, 3112, 3272, 6224, 6544, 12448, 13088, 24896, 26176, 49792, 52352, 159101, 318202, 636404, 1272808, 2545616, 5091232, 10182464, 20364928]

約数ペア:

[(1, 20364928), (2, 10182464), (4, 5091232), (8, 2545616), (16, 1272808), (32, 636404), (64, 318202), (128, 159101), (389, 52352), (409, 49792), (778, 26176), (818, 24896), (1556, 13088), (1636, 12448), (3112, 6544), (3272, 6224)]