2811556

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:220

約数の個数: 36

約数和(自身を含む): 5589724

約数和(自身を除く): 2778168

約数列:

[1, 2, 4, 11, 22, 37, 44, 74, 121, 148, 157, 242, 314, 407, 484, 628, 814, 1628, 1727, 3454, 4477, 5809, 6908, 8954, 11618, 17908, 18997, 23236, 37994, 63899, 75988, 127798, 255596, 702889, 1405778, 2811556]

約数ペア:

[(1, 2811556), (2, 1405778), (4, 702889), (11, 255596), (22, 127798), (37, 75988), (44, 63899), (74, 37994), (121, 23236), (148, 18997), (157, 17908), (242, 11618), (314, 8954), (407, 6908), (484, 5809), (628, 4477), (814, 3454), (1628, 1727)]