51245800

素因数分解:

$2^3\times 5^2\times {\mathrm{257}}^1\times {\mathrm{997}}^1$

素因数の和:1270

約数の個数: 48

約数和(自身を含む): 119730060

約数和(自身を除く): 68484260

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 257, 514, 997, 1028, 1285, 1994, 2056, 2570, 3988, 4985, 5140, 6425, 7976, 9970, 10280, 12850, 19940, 24925, 25700, 39880, 49850, 51400, 99700, 199400, 256229, 512458, 1024916, 1281145, 2049832, 2562290, 5124580, 6405725, 10249160, 12811450, 25622900, 51245800]

約数ペア:

[(1, 51245800), (2, 25622900), (4, 12811450), (5, 10249160), (8, 6405725), (10, 5124580), (20, 2562290), (25, 2049832), (40, 1281145), (50, 1024916), (100, 512458), (200, 256229), (257, 199400), (514, 99700), (997, 51400), (1028, 49850), (1285, 39880), (1994, 25700), (2056, 24925), (2570, 19940), (3988, 12850), (4985, 10280), (5140, 9970), (6425, 7976)]