258710

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{631}}^1$

素因数の和:679

約数の個数: 16

約数和(自身を含む): 477792

約数和(自身を除く): 219082

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 631, 1262, 3155, 6310, 25871, 51742, 129355, 258710]

約数ペア:

[(1, 258710), (2, 129355), (5, 51742), (10, 25871), (41, 6310), (82, 3155), (205, 1262), (410, 631)]