28964020

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{23741}}^1$

素因数の和:23811

約数の個数: 24

約数和(自身を含む): 61824168

約数和(自身を除く): 32860148

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 23741, 47482, 94964, 118705, 237410, 474820, 1448201, 2896402, 5792804, 7241005, 14482010, 28964020]

約数ペア:

[(1, 28964020), (2, 14482010), (4, 7241005), (5, 5792804), (10, 2896402), (20, 1448201), (61, 474820), (122, 237410), (244, 118705), (305, 94964), (610, 47482), (1220, 23741)]