1290765

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{647}}^1$

素因数の和:681

約数の個数: 32

約数和(自身を含む): 2488320

約数和(自身を除く): 1197555

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 285, 399, 647, 665, 1941, 1995, 3235, 4529, 9705, 12293, 13587, 22645, 36879, 61465, 67935, 86051, 184395, 258153, 430255, 1290765]

約数ペア:

[(1, 1290765), (3, 430255), (5, 258153), (7, 184395), (15, 86051), (19, 67935), (21, 61465), (35, 36879), (57, 22645), (95, 13587), (105, 12293), (133, 9705), (285, 4529), (399, 3235), (647, 1995), (665, 1941)]