72805579

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{1999}}^1$

素因数の和:2071

約数の個数: 24

約数和(自身を含む): 93632000

約数和(自身を除く): 20826421

約数列:

[1, 7, 11, 43, 77, 121, 301, 473, 847, 1999, 3311, 5203, 13993, 21989, 36421, 85957, 153923, 241879, 601699, 945527, 1693153, 6618689, 10400797, 72805579]

約数ペア:

[(1, 72805579), (7, 10400797), (11, 6618689), (43, 1693153), (77, 945527), (121, 601699), (301, 241879), (473, 153923), (847, 85957), (1999, 36421), (3311, 21989), (5203, 13993)]