20806251410

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{449}}^1\times {\mathrm{661987}}^1$

素因数の和:662450

約数の個数: 32

約数和(自身を含む): 42896822400

約数和(自身を除く): 22090570990

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 449, 898, 2245, 3143, 4490, 6286, 15715, 31430, 661987, 1323974, 3309935, 4633909, 6619870, 9267818, 23169545, 46339090, 297232163, 594464326, 1486160815, 2080625141, 2972321630, 4161250282, 10403125705, 20806251410]

約数ペア:

[(1, 20806251410), (2, 10403125705), (5, 4161250282), (7, 2972321630), (10, 2080625141), (14, 1486160815), (35, 594464326), (70, 297232163), (449, 46339090), (898, 23169545), (2245, 9267818), (3143, 6619870), (4490, 4633909), (6286, 3309935), (15715, 1323974), (31430, 661987)]