25108900

素因数分解:

$2^2\times 5^2\times {\mathrm{257}}^1\times {\mathrm{977}}^1$

素因数の和:1248

約数の個数: 36

約数和(自身を含む): 54754308

約数和(自身を除く): 29645408

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 257, 514, 977, 1028, 1285, 1954, 2570, 3908, 4885, 5140, 6425, 9770, 12850, 19540, 24425, 25700, 48850, 97700, 251089, 502178, 1004356, 1255445, 2510890, 5021780, 6277225, 12554450, 25108900]

約数ペア:

[(1, 25108900), (2, 12554450), (4, 6277225), (5, 5021780), (10, 2510890), (20, 1255445), (25, 1004356), (50, 502178), (100, 251089), (257, 97700), (514, 48850), (977, 25700), (1028, 24425), (1285, 19540), (1954, 12850), (2570, 9770), (3908, 6425), (4885, 5140)]