20480764

素因数分解:

$2^2\times {\mathrm{23}}^2\times {\mathrm{9679}}^1$

素因数の和:9729

約数の個数: 18

約数和(自身を含む): 37471280

約数和(自身を除く): 16990516

約数列:

[1, 2, 4, 23, 46, 92, 529, 1058, 2116, 9679, 19358, 38716, 222617, 445234, 890468, 5120191, 10240382, 20480764]

約数ペア:

[(1, 20480764), (2, 10240382), (4, 5120191), (23, 890468), (46, 445234), (92, 222617), (529, 38716), (1058, 19358), (2116, 9679)]