521860

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{269}}^1$

素因数の和:375

約数の個数: 24

約数和(自身を含む): 1111320

約数和(自身を除く): 589460

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 269, 388, 485, 538, 970, 1076, 1345, 1940, 2690, 5380, 26093, 52186, 104372, 130465, 260930, 521860]

約数ペア:

[(1, 521860), (2, 260930), (4, 130465), (5, 104372), (10, 52186), (20, 26093), (97, 5380), (194, 2690), (269, 1940), (388, 1345), (485, 1076), (538, 970)]