261900085

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{373}}^1\times {\mathrm{389}}^1$

素因数の和:805

約数の個数: 24

約数和(自身を含む): 333435960

約数和(自身を除く): 71535875

約数列:

[1, 5, 19, 95, 361, 373, 389, 1805, 1865, 1945, 7087, 7391, 35435, 36955, 134653, 140429, 145097, 673265, 702145, 725485, 2756843, 13784215, 52380017, 261900085]

約数ペア:

[(1, 261900085), (5, 52380017), (19, 13784215), (95, 2756843), (361, 725485), (373, 702145), (389, 673265), (1805, 145097), (1865, 140429), (1945, 134653), (7087, 36955), (7391, 35435)]