256390804

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{18947}}^1$

素因数の和:19167

約数の個数: 24

約数和(自身を含む): 477489600

約数和(自身を除く): 221098796

約数列:

[1, 2, 4, 17, 34, 68, 199, 398, 796, 3383, 6766, 13532, 18947, 37894, 75788, 322099, 644198, 1288396, 3770453, 7540906, 15081812, 64097701, 128195402, 256390804]

約数ペア:

[(1, 256390804), (2, 128195402), (4, 64097701), (17, 15081812), (34, 7540906), (68, 3770453), (199, 1288396), (398, 644198), (796, 322099), (3383, 75788), (6766, 37894), (13532, 18947)]