400804968968

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{705642551}}^1$

素因数の和:705642628

約数の個数: 16

約数和(自身を含む): 762093956160

約数和(自身を除く): 361288987192

約数列:

[1, 2, 4, 8, 71, 142, 284, 568, 705642551, 1411285102, 2822570204, 5645140408, 50100621121, 100201242242, 200402484484, 400804968968]

約数ペア:

[(1, 400804968968), (2, 200402484484), (4, 100201242242), (8, 50100621121), (71, 5645140408), (142, 2822570204), (284, 1411285102), (568, 705642551)]