20258968

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{823}}^1$

素因数の和:1027

約数の個数: 32

約数和(自身を含む): 40491360

約数和(自身を除く): 20232392

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 181, 362, 724, 823, 1448, 1646, 3077, 3292, 6154, 6584, 12308, 13991, 24616, 27982, 55964, 111928, 148963, 297926, 595852, 1191704, 2532371, 5064742, 10129484, 20258968]

約数ペア:

[(1, 20258968), (2, 10129484), (4, 5064742), (8, 2532371), (17, 1191704), (34, 595852), (68, 297926), (136, 148963), (181, 111928), (362, 55964), (724, 27982), (823, 24616), (1448, 13991), (1646, 12308), (3077, 6584), (3292, 6154)]