256211805

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{6857}}^1$

素因数の和:6965

約数の個数: 32

約数和(自身を含む): 426622464

約数和(自身を除く): 170410659

約数列:

[1, 3, 5, 15, 47, 53, 141, 159, 235, 265, 705, 795, 2491, 6857, 7473, 12455, 20571, 34285, 37365, 102855, 322279, 363421, 966837, 1090263, 1611395, 1817105, 4834185, 5451315, 17080787, 51242361, 85403935, 256211805]

約数ペア:

[(1, 256211805), (3, 85403935), (5, 51242361), (15, 17080787), (47, 5451315), (53, 4834185), (141, 1817105), (159, 1611395), (235, 1090263), (265, 966837), (705, 363421), (795, 322279), (2491, 102855), (6857, 37365), (7473, 34285), (12455, 20571)]