20565994000

素因数分解:

$2^4\times 5^3\times {\mathrm{10282997}}^1$

素因数の和:10283020

約数の個数: 40

約数和(自身を含む): 49728578328

約数和(自身を除く): 29162584328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 10282997, 20565994, 41131988, 51414985, 82263976, 102829970, 164527952, 205659940, 257074925, 411319880, 514149850, 822639760, 1028299700, 1285374625, 2056599400, 2570749250, 4113198800, 5141498500, 10282997000, 20565994000]

約数ペア:

[(1, 20565994000), (2, 10282997000), (4, 5141498500), (5, 4113198800), (8, 2570749250), (10, 2056599400), (16, 1285374625), (20, 1028299700), (25, 822639760), (40, 514149850), (50, 411319880), (80, 257074925), (100, 205659940), (125, 164527952), (200, 102829970), (250, 82263976), (400, 51414985), (500, 41131988), (1000, 20565994), (2000, 10282997)]