12899005

素因数分解:

$5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 20191680

約数和(自身を除く): 7292675

約数列:

[1, 5, 7, 17, 19, 35, 49, 85, 95, 119, 133, 163, 245, 323, 595, 665, 815, 833, 931, 1141, 1615, 2261, 2771, 3097, 4165, 4655, 5705, 7987, 11305, 13855, 15485, 15827, 19397, 21679, 39935, 52649, 79135, 96985, 108395, 135779, 151753, 263245, 368543, 678895, 758765, 1842715, 2579801, 12899005]

約数ペア:

[(1, 12899005), (5, 2579801), (7, 1842715), (17, 758765), (19, 678895), (35, 368543), (49, 263245), (85, 151753), (95, 135779), (119, 108395), (133, 96985), (163, 79135), (245, 52649), (323, 39935), (595, 21679), (665, 19397), (815, 15827), (833, 15485), (931, 13855), (1141, 11305), (1615, 7987), (2261, 5705), (2771, 4655), (3097, 4165)]