12768020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{47}}^2$

素因数の和:137

約数の個数: 54

約数和(自身を含む): 29101758

約数和(自身を除く): 16333738

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 47, 68, 85, 94, 170, 188, 235, 289, 340, 470, 578, 799, 940, 1156, 1445, 1598, 2209, 2890, 3196, 3995, 4418, 5780, 7990, 8836, 11045, 13583, 15980, 22090, 27166, 37553, 44180, 54332, 67915, 75106, 135830, 150212, 187765, 271660, 375530, 638401, 751060, 1276802, 2553604, 3192005, 6384010, 12768020]

約数ペア:

[(1, 12768020), (2, 6384010), (4, 3192005), (5, 2553604), (10, 1276802), (17, 751060), (20, 638401), (34, 375530), (47, 271660), (68, 187765), (85, 150212), (94, 135830), (170, 75106), (188, 67915), (235, 54332), (289, 44180), (340, 37553), (470, 27166), (578, 22090), (799, 15980), (940, 13583), (1156, 11045), (1445, 8836), (1598, 7990), (2209, 5780), (2890, 4418), (3196, 3995)]