12845805

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1$

素因数の和:218

約数の個数: 64

約数和(自身を含む): 25436160

約数和(自身を除く): 12590355

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 47, 57, 95, 105, 133, 137, 141, 235, 285, 329, 399, 411, 665, 685, 705, 893, 959, 987, 1645, 1995, 2055, 2603, 2679, 2877, 4465, 4795, 4935, 6251, 6439, 7809, 13015, 13395, 14385, 18221, 18753, 19317, 31255, 32195, 39045, 45073, 54663, 91105, 93765, 96585, 122341, 135219, 225365, 273315, 367023, 611705, 676095, 856387, 1835115, 2569161, 4281935, 12845805]

約数ペア:

[(1, 12845805), (3, 4281935), (5, 2569161), (7, 1835115), (15, 856387), (19, 676095), (21, 611705), (35, 367023), (47, 273315), (57, 225365), (95, 135219), (105, 122341), (133, 96585), (137, 93765), (141, 91105), (235, 54663), (285, 45073), (329, 39045), (399, 32195), (411, 31255), (665, 19317), (685, 18753), (705, 18221), (893, 14385), (959, 13395), (987, 13015), (1645, 7809), (1995, 6439), (2055, 6251), (2603, 4935), (2679, 4795), (2877, 4465)]