8764430380

素因数分解:

$2^2\times 5^1\times {\mathrm{438221519}}^1$

素因数の和:438221528

約数の個数: 12

約数和(自身を含む): 18405303840

約数和(自身を除く): 9640873460

約数列:

[1, 2, 4, 5, 10, 20, 438221519, 876443038, 1752886076, 2191107595, 4382215190, 8764430380]

約数ペア:

[(1, 8764430380), (2, 4382215190), (4, 2191107595), (5, 1752886076), (10, 876443038), (20, 438221519)]