261574405

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{331}}^1\times {\mathrm{2591}}^1$

素因数の和:2988

約数の個数: 16

約数和(自身を含む): 320122368

約数和(自身を除く): 58547963

約数列:

[1, 5, 61, 305, 331, 1655, 2591, 12955, 20191, 100955, 158051, 790255, 857621, 4288105, 52314881, 261574405]

約数ペア:

[(1, 261574405), (5, 52314881), (61, 4288105), (305, 857621), (331, 790255), (1655, 158051), (2591, 100955), (12955, 20191)]