20484890

素因数分解:

$2^1\times 5^1\times {\mathrm{271}}^1\times {\mathrm{7559}}^1$

素因数の和:7837

約数の個数: 16

約数和(自身を含む): 37013760

約数和(自身を除く): 16528870

約数列:

[1, 2, 5, 10, 271, 542, 1355, 2710, 7559, 15118, 37795, 75590, 2048489, 4096978, 10242445, 20484890]

約数ペア:

[(1, 20484890), (2, 10242445), (5, 4096978), (10, 2048489), (271, 75590), (542, 37795), (1355, 15118), (2710, 7559)]