28539995

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{881}}^1$

素因数の和:947

約数の個数: 32

約数和(自身を含む): 40642560

約数和(自身を除く): 12102565

約数列:

[1, 5, 11, 19, 31, 55, 95, 155, 209, 341, 589, 881, 1045, 1705, 2945, 4405, 6479, 9691, 16739, 27311, 32395, 48455, 83695, 136555, 184129, 300421, 518909, 920645, 1502105, 2594545, 5707999, 28539995]

約数ペア:

[(1, 28539995), (5, 5707999), (11, 2594545), (19, 1502105), (31, 920645), (55, 518909), (95, 300421), (155, 184129), (209, 136555), (341, 83695), (589, 48455), (881, 32395), (1045, 27311), (1705, 16739), (2945, 9691), (4405, 6479)]