261275478

素因数分解:

$2^1\times 3^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{12263}}^1$

素因数の和:12388

約数の個数: 32

約数和(自身を含む): 540400896

約数和(自身を除く): 279125418

約数列:

[1, 2, 3, 6, 53, 67, 106, 134, 159, 201, 318, 402, 3551, 7102, 10653, 12263, 21306, 24526, 36789, 73578, 649939, 821621, 1299878, 1643242, 1949817, 2464863, 3899634, 4929726, 43545913, 87091826, 130637739, 261275478]

約数ペア:

[(1, 261275478), (2, 130637739), (3, 87091826), (6, 43545913), (53, 4929726), (67, 3899634), (106, 2464863), (134, 1949817), (159, 1643242), (201, 1299878), (318, 821621), (402, 649939), (3551, 73578), (7102, 36789), (10653, 24526), (12263, 21306)]