72205715

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{20719}}^1$

素因数の和:20782

約数の個数: 16

約数和(自身を含む): 93985920

約数和(自身を除く): 21780205

約数列:

[1, 5, 17, 41, 85, 205, 697, 3485, 20719, 103595, 352223, 849479, 1761115, 4247395, 14441143, 72205715]

約数ペア:

[(1, 72205715), (5, 14441143), (17, 4247395), (41, 1761115), (85, 849479), (205, 352223), (697, 103595), (3485, 20719)]