25728200

素因数分解:

$2^3\times 5^2\times {\mathrm{197}}^1\times {\mathrm{653}}^1$

素因数の和:866

約数の個数: 48

約数和(自身を含む): 60213780

約数和(自身を除く): 34485580

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 197, 200, 394, 653, 788, 985, 1306, 1576, 1970, 2612, 3265, 3940, 4925, 5224, 6530, 7880, 9850, 13060, 16325, 19700, 26120, 32650, 39400, 65300, 128641, 130600, 257282, 514564, 643205, 1029128, 1286410, 2572820, 3216025, 5145640, 6432050, 12864100, 25728200]

約数ペア:

[(1, 25728200), (2, 12864100), (4, 6432050), (5, 5145640), (8, 3216025), (10, 2572820), (20, 1286410), (25, 1029128), (40, 643205), (50, 514564), (100, 257282), (197, 130600), (200, 128641), (394, 65300), (653, 39400), (788, 32650), (985, 26120), (1306, 19700), (1576, 16325), (1970, 13060), (2612, 9850), (3265, 7880), (3940, 6530), (4925, 5224)]