256475336

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{60149}}^1$

素因数の和:60209

約数の個数: 32

約数和(自身を含む): 530523000

約数和(自身を除く): 274047664

約数列:

[1, 2, 4, 8, 13, 26, 41, 52, 82, 104, 164, 328, 533, 1066, 2132, 4264, 60149, 120298, 240596, 481192, 781937, 1563874, 2466109, 3127748, 4932218, 6255496, 9864436, 19728872, 32059417, 64118834, 128237668, 256475336]

約数ペア:

[(1, 256475336), (2, 128237668), (4, 64118834), (8, 32059417), (13, 19728872), (26, 9864436), (41, 6255496), (52, 4932218), (82, 3127748), (104, 2466109), (164, 1563874), (328, 781937), (533, 481192), (1066, 240596), (2132, 120298), (4264, 60149)]