1266955490

素因数分解:

$2^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{315949}}^1$

素因数の和:316357

約数の個数: 16

約数和(自身を含む): 2286214200

約数和(自身を除く): 1019258710

約数列:

[1, 2, 5, 10, 401, 802, 2005, 4010, 315949, 631898, 1579745, 3159490, 126695549, 253391098, 633477745, 1266955490]

約数ペア:

[(1, 1266955490), (2, 633477745), (5, 253391098), (10, 126695549), (401, 3159490), (802, 1579745), (2005, 631898), (4010, 315949)]