258620

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{193}}^1$

素因数の和:269

約数の個数: 24

約数和(自身を含む): 554064

約数和(自身を除く): 295444

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 193, 268, 335, 386, 670, 772, 965, 1340, 1930, 3860, 12931, 25862, 51724, 64655, 129310, 258620]

約数ペア:

[(1, 258620), (2, 129310), (4, 64655), (5, 51724), (10, 25862), (20, 12931), (67, 3860), (134, 1930), (193, 1340), (268, 965), (335, 772), (386, 670)]