20630560

素因数分解:

$2^5\times 5^1\times {\mathrm{128941}}^1$

素因数の和:128956

約数の個数: 24

約数和(自身を含む): 48740076

約数和(自身を除く): 28109516

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 128941, 257882, 515764, 644705, 1031528, 1289410, 2063056, 2578820, 4126112, 5157640, 10315280, 20630560]

約数ペア:

[(1, 20630560), (2, 10315280), (4, 5157640), (5, 4126112), (8, 2578820), (10, 2063056), (16, 1289410), (20, 1031528), (32, 644705), (40, 515764), (80, 257882), (160, 128941)]