31720404

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{281}}^1\times {\mathrm{409}}^1$

素因数の和:720

約数の個数: 48

約数和(自身を含む): 77696640

約数和(自身を除く): 45976236

約数列:

[1, 2, 3, 4, 6, 12, 23, 46, 69, 92, 138, 276, 281, 409, 562, 818, 843, 1124, 1227, 1636, 1686, 2454, 3372, 4908, 6463, 9407, 12926, 18814, 19389, 25852, 28221, 37628, 38778, 56442, 77556, 112884, 114929, 229858, 344787, 459716, 689574, 1379148, 2643367, 5286734, 7930101, 10573468, 15860202, 31720404]

約数ペア:

[(1, 31720404), (2, 15860202), (3, 10573468), (4, 7930101), (6, 5286734), (12, 2643367), (23, 1379148), (46, 689574), (69, 459716), (92, 344787), (138, 229858), (276, 114929), (281, 112884), (409, 77556), (562, 56442), (818, 38778), (843, 37628), (1124, 28221), (1227, 25852), (1636, 19389), (1686, 18814), (2454, 12926), (3372, 9407), (4908, 6463)]