25726640

素因数分解:

$2^4\times 5^1\times {\mathrm{353}}^1\times {\mathrm{911}}^1$

素因数の和:1277

約数の個数: 40

約数和(自身を含む): 60049728

約数和(自身を除く): 34323088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 353, 706, 911, 1412, 1765, 1822, 2824, 3530, 3644, 4555, 5648, 7060, 7288, 9110, 14120, 14576, 18220, 28240, 36440, 72880, 321583, 643166, 1286332, 1607915, 2572664, 3215830, 5145328, 6431660, 12863320, 25726640]

約数ペア:

[(1, 25726640), (2, 12863320), (4, 6431660), (5, 5145328), (8, 3215830), (10, 2572664), (16, 1607915), (20, 1286332), (40, 643166), (80, 321583), (353, 72880), (706, 36440), (911, 28240), (1412, 18220), (1765, 14576), (1822, 14120), (2824, 9110), (3530, 7288), (3644, 7060), (4555, 5648)]