81531065

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{12457}}^1$

素因数の和:12497

約数の個数: 32

約数和(自身を含む): 129164544

約数和(自身を除く): 47633479

約数列:

[1, 5, 7, 11, 17, 35, 55, 77, 85, 119, 187, 385, 595, 935, 1309, 6545, 12457, 62285, 87199, 137027, 211769, 435995, 685135, 959189, 1058845, 1482383, 2329459, 4795945, 7411915, 11647295, 16306213, 81531065]

約数ペア:

[(1, 81531065), (5, 16306213), (7, 11647295), (11, 7411915), (17, 4795945), (35, 2329459), (55, 1482383), (77, 1058845), (85, 959189), (119, 685135), (187, 435995), (385, 211769), (595, 137027), (935, 87199), (1309, 62285), (6545, 12457)]