28285000

素因数分解:

$2^3\times 5^4\times {\mathrm{5657}}^1$

素因数の和:5683

約数の個数: 40

約数和(自身を含む): 66283470

約数和(自身を除く): 37998470

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 1000, 1250, 2500, 5000, 5657, 11314, 22628, 28285, 45256, 56570, 113140, 141425, 226280, 282850, 565700, 707125, 1131400, 1414250, 2828500, 3535625, 5657000, 7071250, 14142500, 28285000]

約数ペア:

[(1, 28285000), (2, 14142500), (4, 7071250), (5, 5657000), (8, 3535625), (10, 2828500), (20, 1414250), (25, 1131400), (40, 707125), (50, 565700), (100, 282850), (125, 226280), (200, 141425), (250, 113140), (500, 56570), (625, 45256), (1000, 28285), (1250, 22628), (2500, 11314), (5000, 5657)]