668840590

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{85639}}^1$

素因数の和:85728

約数の個数: 32

約数和(自身を含む): 1331873280

約数和(自身を除く): 663032690

約数列:

[1, 2, 5, 10, 11, 22, 55, 71, 110, 142, 355, 710, 781, 1562, 3905, 7810, 85639, 171278, 428195, 856390, 942029, 1884058, 4710145, 6080369, 9420290, 12160738, 30401845, 60803690, 66884059, 133768118, 334420295, 668840590]

約数ペア:

[(1, 668840590), (2, 334420295), (5, 133768118), (10, 66884059), (11, 60803690), (22, 30401845), (55, 12160738), (71, 9420290), (110, 6080369), (142, 4710145), (355, 1884058), (710, 942029), (781, 856390), (1562, 428195), (3905, 171278), (7810, 85639)]