138732020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{449}}^1\times {\mathrm{2207}}^1$

素因数の和:2672

約数の個数: 48

約数和(自身を含む): 333849600

約数和(自身を除く): 195117580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 449, 898, 1796, 2207, 2245, 3143, 4414, 4490, 6286, 8828, 8980, 11035, 12572, 15449, 15715, 22070, 30898, 31430, 44140, 61796, 62860, 77245, 154490, 308980, 990943, 1981886, 3963772, 4954715, 6936601, 9909430, 13873202, 19818860, 27746404, 34683005, 69366010, 138732020]

約数ペア:

[(1, 138732020), (2, 69366010), (4, 34683005), (5, 27746404), (7, 19818860), (10, 13873202), (14, 9909430), (20, 6936601), (28, 4954715), (35, 3963772), (70, 1981886), (140, 990943), (449, 308980), (898, 154490), (1796, 77245), (2207, 62860), (2245, 61796), (3143, 44140), (4414, 31430), (4490, 30898), (6286, 22070), (8828, 15715), (8980, 15449), (11035, 12572)]