207898180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{212141}}^1$

素因数の和:212164

約数の個数: 36

約数和(自身を含む): 507867948

約数和(自身を除く): 299969768

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 212141, 424282, 848564, 1060705, 1484987, 2121410, 2969974, 4242820, 5939948, 7424935, 10394909, 14849870, 20789818, 29699740, 41579636, 51974545, 103949090, 207898180]

約数ペア:

[(1, 207898180), (2, 103949090), (4, 51974545), (5, 41579636), (7, 29699740), (10, 20789818), (14, 14849870), (20, 10394909), (28, 7424935), (35, 5939948), (49, 4242820), (70, 2969974), (98, 2121410), (140, 1484987), (196, 1060705), (245, 848564), (490, 424282), (980, 212141)]