16801225

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1$

素因数の和:230

約数の個数: 48

約数和(自身を含む): 26030080

約数和(自身を除く): 9228855

約数列:

[1, 5, 7, 19, 25, 31, 35, 95, 133, 155, 163, 175, 217, 475, 589, 665, 775, 815, 1085, 1141, 2945, 3097, 3325, 4075, 4123, 5053, 5425, 5705, 14725, 15485, 20615, 21679, 25265, 28525, 35371, 77425, 96007, 103075, 108395, 126325, 176855, 480035, 541975, 672049, 884275, 2400175, 3360245, 16801225]

約数ペア:

[(1, 16801225), (5, 3360245), (7, 2400175), (19, 884275), (25, 672049), (31, 541975), (35, 480035), (95, 176855), (133, 126325), (155, 108395), (163, 103075), (175, 96007), (217, 77425), (475, 35371), (589, 28525), (665, 25265), (775, 21679), (815, 20615), (1085, 15485), (1141, 14725), (2945, 5705), (3097, 5425), (3325, 5053), (4075, 4123)]