20161075

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{439}}^1$

素因数の和:627

約数の個数: 24

約数和(自身を含む): 27498240

約数和(自身を除く): 7337165

約数列:

[1, 5, 11, 25, 55, 167, 275, 439, 835, 1837, 2195, 4175, 4829, 9185, 10975, 24145, 45925, 73313, 120725, 366565, 806443, 1832825, 4032215, 20161075]

約数ペア:

[(1, 20161075), (5, 4032215), (11, 1832825), (25, 806443), (55, 366565), (167, 120725), (275, 73313), (439, 45925), (835, 24145), (1837, 10975), (2195, 9185), (4175, 4829)]