220178877

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1\times {\mathrm{227}}^1$

素因数の和:449

約数の個数: 32

約数和(自身を含む): 308825088

約数和(自身を除く): 88646211

約数列:

[1, 3, 43, 73, 103, 129, 219, 227, 309, 681, 3139, 4429, 7519, 9417, 9761, 13287, 16571, 22557, 23381, 29283, 49713, 70143, 323317, 712553, 969951, 1005383, 1706813, 2137659, 3016149, 5120439, 73392959, 220178877]

約数ペア:

[(1, 220178877), (3, 73392959), (43, 5120439), (73, 3016149), (103, 2137659), (129, 1706813), (219, 1005383), (227, 969951), (309, 712553), (681, 323317), (3139, 70143), (4429, 49713), (7519, 29283), (9417, 23381), (9761, 22557), (13287, 16571)]