20536420

素因数分解:

$2^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{2339}}^1$

素因数の和:2787

約数の個数: 24

約数和(自身を含む): 43243200

約数和(自身を除く): 22706780

約数列:

[1, 2, 4, 5, 10, 20, 439, 878, 1756, 2195, 2339, 4390, 4678, 8780, 9356, 11695, 23390, 46780, 1026821, 2053642, 4107284, 5134105, 10268210, 20536420]

約数ペア:

[(1, 20536420), (2, 10268210), (4, 5134105), (5, 4107284), (10, 2053642), (20, 1026821), (439, 46780), (878, 23390), (1756, 11695), (2195, 9356), (2339, 8780), (4390, 4678)]