1261892560

素因数分解:

$2^4\times 5^1\times {\mathrm{15773657}}^1$

素因数の和:15773670

約数の個数: 20

約数和(自身を含む): 2933900388

約数和(自身を除く): 1672007828

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 15773657, 31547314, 63094628, 78868285, 126189256, 157736570, 252378512, 315473140, 630946280, 1261892560]

約数ペア:

[(1, 1261892560), (2, 630946280), (4, 315473140), (5, 252378512), (8, 157736570), (10, 126189256), (16, 78868285), (20, 63094628), (40, 31547314), (80, 15773657)]