220535985

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{18401}}^1$

素因数の和:18473

約数の個数: 32

約数和(自身を含む): 381583872

約数和(自身を除く): 161047887

約数列:

[1, 3, 5, 15, 17, 47, 51, 85, 141, 235, 255, 705, 799, 2397, 3995, 11985, 18401, 55203, 92005, 276015, 312817, 864847, 938451, 1564085, 2594541, 4324235, 4692255, 12972705, 14702399, 44107197, 73511995, 220535985]

約数ペア:

[(1, 220535985), (3, 73511995), (5, 44107197), (15, 14702399), (17, 12972705), (47, 4692255), (51, 4324235), (85, 2594541), (141, 1564085), (235, 938451), (255, 864847), (705, 312817), (799, 276015), (2397, 92005), (3995, 55203), (11985, 18401)]