2020025

素因数分解:

$5^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{97}}^1$

素因数の和:138

約数の個数: 36

約数和(自身を含む): 3116988

約数和(自身を除く): 1096963

約数列:

[1, 5, 7, 17, 25, 35, 49, 85, 97, 119, 175, 245, 425, 485, 595, 679, 833, 1225, 1649, 2425, 2975, 3395, 4165, 4753, 8245, 11543, 16975, 20825, 23765, 41225, 57715, 80801, 118825, 288575, 404005, 2020025]

約数ペア:

[(1, 2020025), (5, 404005), (7, 288575), (17, 118825), (25, 80801), (35, 57715), (49, 41225), (85, 23765), (97, 20825), (119, 16975), (175, 11543), (245, 8245), (425, 4753), (485, 4165), (595, 3395), (679, 2975), (833, 2425), (1225, 1649)]