81803900

素因数分解:

$2^2\times 5^2\times {\mathrm{563}}^1\times {\mathrm{1453}}^1$

素因数の和:2030

約数の個数: 36

約数和(自身を含む): 177952152

約数和(自身を除く): 96148252

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 563, 1126, 1453, 2252, 2815, 2906, 5630, 5812, 7265, 11260, 14075, 14530, 28150, 29060, 36325, 56300, 72650, 145300, 818039, 1636078, 3272156, 4090195, 8180390, 16360780, 20450975, 40901950, 81803900]

約数ペア:

[(1, 81803900), (2, 40901950), (4, 20450975), (5, 16360780), (10, 8180390), (20, 4090195), (25, 3272156), (50, 1636078), (100, 818039), (563, 145300), (1126, 72650), (1453, 56300), (2252, 36325), (2815, 29060), (2906, 28150), (5630, 14530), (5812, 14075), (7265, 11260)]