64180015

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{20407}}^1$

素因数の和:20466

約数の個数: 16

約数和(自身を含む): 83754432

約数和(自身を除く): 19574417

約数列:

[1, 5, 17, 37, 85, 185, 629, 3145, 20407, 102035, 346919, 755059, 1734595, 3775295, 12836003, 64180015]

約数ペア:

[(1, 64180015), (5, 12836003), (17, 3775295), (37, 1734595), (85, 755059), (185, 346919), (629, 102035), (3145, 20407)]