64688655

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{253681}}^1$

素因数の和:253706

約数の個数: 16

約数和(自身を含む): 109590624

約数和(自身を除く): 44901969

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 253681, 761043, 1268405, 3805215, 4312577, 12937731, 21562885, 64688655]

約数ペア:

[(1, 64688655), (3, 21562885), (5, 12937731), (15, 4312577), (17, 3805215), (51, 1268405), (85, 761043), (255, 253681)]