131264420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{19949}}^1$

素因数の和:20012

約数の個数: 48

約数和(自身を含む): 321753600

約数和(自身を除く): 190489180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 188, 235, 329, 470, 658, 940, 1316, 1645, 3290, 6580, 19949, 39898, 79796, 99745, 139643, 199490, 279286, 398980, 558572, 698215, 937603, 1396430, 1875206, 2792860, 3750412, 4688015, 6563221, 9376030, 13126442, 18752060, 26252884, 32816105, 65632210, 131264420]

約数ペア:

[(1, 131264420), (2, 65632210), (4, 32816105), (5, 26252884), (7, 18752060), (10, 13126442), (14, 9376030), (20, 6563221), (28, 4688015), (35, 3750412), (47, 2792860), (70, 1875206), (94, 1396430), (140, 937603), (188, 698215), (235, 558572), (329, 398980), (470, 279286), (658, 199490), (940, 139643), (1316, 99745), (1645, 79796), (3290, 39898), (6580, 19949)]