398534690

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{9941}}^1$

素因数の和:10178

約数の個数: 32

約数和(自身を含む): 758773440

約数和(自身を除く): 360238750

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 211, 422, 1055, 2110, 4009, 8018, 9941, 19882, 20045, 40090, 49705, 99410, 188879, 377758, 944395, 1888790, 2097551, 4195102, 10487755, 20975510, 39853469, 79706938, 199267345, 398534690]

約数ペア:

[(1, 398534690), (2, 199267345), (5, 79706938), (10, 39853469), (19, 20975510), (38, 10487755), (95, 4195102), (190, 2097551), (211, 1888790), (422, 944395), (1055, 377758), (2110, 188879), (4009, 99410), (8018, 49705), (9941, 40090), (19882, 20045)]