256741205

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{13313}}^1$

素因数の和:13373

約数の個数: 32

約数和(自身を含む): 383443200

約数和(自身を除く): 126701995

約数列:

[1, 5, 7, 19, 29, 35, 95, 133, 145, 203, 551, 665, 1015, 2755, 3857, 13313, 19285, 66565, 93191, 252947, 386077, 465955, 1264735, 1770629, 1930385, 2702539, 7335463, 8853145, 13512695, 36677315, 51348241, 256741205]

約数ペア:

[(1, 256741205), (5, 51348241), (7, 36677315), (19, 13512695), (29, 8853145), (35, 7335463), (95, 2702539), (133, 1930385), (145, 1770629), (203, 1264735), (551, 465955), (665, 386077), (1015, 252947), (2755, 93191), (3857, 66565), (13313, 19285)]