12800205

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1361}}^1$

素因数の和:1402

約数の個数: 48

約数和(自身を含む): 25496640

約数和(自身を除く): 12696435

約数列:

[1, 3, 5, 9, 11, 15, 19, 33, 45, 55, 57, 95, 99, 165, 171, 209, 285, 495, 627, 855, 1045, 1361, 1881, 3135, 4083, 6805, 9405, 12249, 14971, 20415, 25859, 44913, 61245, 74855, 77577, 129295, 134739, 224565, 232731, 284449, 387885, 673695, 853347, 1163655, 1422245, 2560041, 4266735, 12800205]

約数ペア:

[(1, 12800205), (3, 4266735), (5, 2560041), (9, 1422245), (11, 1163655), (15, 853347), (19, 673695), (33, 387885), (45, 284449), (55, 232731), (57, 224565), (95, 134739), (99, 129295), (165, 77577), (171, 74855), (209, 61245), (285, 44913), (495, 25859), (627, 20415), (855, 14971), (1045, 12249), (1361, 9405), (1881, 6805), (3135, 4083)]