643858564

素因数分解:

$2^2\times {\mathrm{139}}^1\times {\mathrm{151}}^1\times {\mathrm{7669}}^1$

素因数の和:7963

約数の個数: 24

約数和(自身を含む): 1142523200

約数和(自身を除く): 498664636

約数列:

[1, 2, 4, 139, 151, 278, 302, 556, 604, 7669, 15338, 20989, 30676, 41978, 83956, 1065991, 1158019, 2131982, 2316038, 4263964, 4632076, 160964641, 321929282, 643858564]

約数ペア:

[(1, 643858564), (2, 321929282), (4, 160964641), (139, 4632076), (151, 4263964), (278, 2316038), (302, 2131982), (556, 1158019), (604, 1065991), (7669, 83956), (15338, 41978), (20989, 30676)]