20356910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{41}}^2\times {\mathrm{173}}^1$

素因数の和:269

約数の個数: 48

約数和(自身を含む): 43171488

約数和(自身を除く): 22814578

約数列:

[1, 2, 5, 7, 10, 14, 35, 41, 70, 82, 173, 205, 287, 346, 410, 574, 865, 1211, 1435, 1681, 1730, 2422, 2870, 3362, 6055, 7093, 8405, 11767, 12110, 14186, 16810, 23534, 35465, 49651, 58835, 70930, 99302, 117670, 248255, 290813, 496510, 581626, 1454065, 2035691, 2908130, 4071382, 10178455, 20356910]

約数ペア:

[(1, 20356910), (2, 10178455), (5, 4071382), (7, 2908130), (10, 2035691), (14, 1454065), (35, 581626), (41, 496510), (70, 290813), (82, 248255), (173, 117670), (205, 99302), (287, 70930), (346, 58835), (410, 49651), (574, 35465), (865, 23534), (1211, 16810), (1435, 14186), (1681, 12110), (1730, 11767), (2422, 8405), (2870, 7093), (3362, 6055)]