7978815

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{593}}^1$

素因数の和:640

約数の個数: 48

約数和(自身を含む): 15567552

約数和(自身を除く): 7588737

約数列:

[1, 3, 5, 9, 13, 15, 23, 39, 45, 65, 69, 115, 117, 195, 207, 299, 345, 585, 593, 897, 1035, 1495, 1779, 2691, 2965, 4485, 5337, 7709, 8895, 13455, 13639, 23127, 26685, 38545, 40917, 68195, 69381, 115635, 122751, 177307, 204585, 346905, 531921, 613755, 886535, 1595763, 2659605, 7978815]

約数ペア:

[(1, 7978815), (3, 2659605), (5, 1595763), (9, 886535), (13, 613755), (15, 531921), (23, 346905), (39, 204585), (45, 177307), (65, 122751), (69, 115635), (115, 69381), (117, 68195), (195, 40917), (207, 38545), (299, 26685), (345, 23127), (585, 13639), (593, 13455), (897, 8895), (1035, 7709), (1495, 5337), (1779, 4485), (2691, 2965)]