10905245

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:245

約数の個数: 32

約数和(自身を含む): 15240960

約数和(自身を除く): 4335715

約数列:

[1, 5, 13, 17, 65, 71, 85, 139, 221, 355, 695, 923, 1105, 1207, 1807, 2363, 4615, 6035, 9035, 9869, 11815, 15691, 30719, 49345, 78455, 128297, 153595, 167773, 641485, 838865, 2181049, 10905245]

約数ペア:

[(1, 10905245), (5, 2181049), (13, 838865), (17, 641485), (65, 167773), (71, 153595), (85, 128297), (139, 78455), (221, 49345), (355, 30719), (695, 15691), (923, 11815), (1105, 9869), (1207, 9035), (1807, 6035), (2363, 4615)]