40505855

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:287

約数の個数: 32

約数和(自身を含む): 54286848

約数和(自身を除く): 13780993

約数列:

[1, 5, 13, 65, 67, 71, 131, 335, 355, 655, 871, 923, 1703, 4355, 4615, 4757, 8515, 8777, 9301, 23785, 43885, 46505, 61841, 114101, 120913, 309205, 570505, 604565, 623167, 3115835, 8101171, 40505855]

約数ペア:

[(1, 40505855), (5, 8101171), (13, 3115835), (65, 623167), (67, 604565), (71, 570505), (131, 309205), (335, 120913), (355, 114101), (655, 61841), (871, 46505), (923, 43885), (1703, 23785), (4355, 9301), (4615, 8777), (4757, 8515)]