138857740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^2\times {\mathrm{449}}^1$

素因数の和:559

約数の個数: 72

約数和(自身を含む): 341258400

約数和(自身を除く): 202400660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 188, 235, 329, 449, 470, 658, 898, 940, 1316, 1645, 1796, 2209, 2245, 3143, 3290, 4418, 4490, 6286, 6580, 8836, 8980, 11045, 12572, 15463, 15715, 21103, 22090, 30926, 31430, 42206, 44180, 61852, 62860, 77315, 84412, 105515, 147721, 154630, 211030, 295442, 309260, 422060, 590884, 738605, 991841, 1477210, 1983682, 2954420, 3967364, 4959205, 6942887, 9918410, 13885774, 19836820, 27771548, 34714435, 69428870, 138857740]

約数ペア:

[(1, 138857740), (2, 69428870), (4, 34714435), (5, 27771548), (7, 19836820), (10, 13885774), (14, 9918410), (20, 6942887), (28, 4959205), (35, 3967364), (47, 2954420), (70, 1983682), (94, 1477210), (140, 991841), (188, 738605), (235, 590884), (329, 422060), (449, 309260), (470, 295442), (658, 211030), (898, 154630), (940, 147721), (1316, 105515), (1645, 84412), (1796, 77315), (2209, 62860), (2245, 61852), (3143, 44180), (3290, 42206), (4418, 31430), (4490, 30926), (6286, 22090), (6580, 21103), (8836, 15715), (8980, 15463), (11045, 12572)]