7864285

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{647}}^1$

素因数の和:693

約数の個数: 32

約数和(自身を含む): 11757312

約数和(自身を除く): 3893027

約数列:

[1, 5, 11, 13, 17, 55, 65, 85, 143, 187, 221, 647, 715, 935, 1105, 2431, 3235, 7117, 8411, 10999, 12155, 35585, 42055, 54995, 92521, 120989, 142987, 462605, 604945, 714935, 1572857, 7864285]

約数ペア:

[(1, 7864285), (5, 1572857), (11, 714935), (13, 604945), (17, 462605), (55, 142987), (65, 120989), (85, 92521), (143, 54995), (187, 42055), (221, 35585), (647, 12155), (715, 10999), (935, 8411), (1105, 7117), (2431, 3235)]