25237400

素因数分解:

$2^3\times 5^2\times {\mathrm{257}}^1\times {\mathrm{491}}^1$

素因数の和:764

約数の個数: 48

約数和(自身を含む): 59025240

約数和(自身を除く): 33787840

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 257, 491, 514, 982, 1028, 1285, 1964, 2056, 2455, 2570, 3928, 4910, 5140, 6425, 9820, 10280, 12275, 12850, 19640, 24550, 25700, 49100, 51400, 98200, 126187, 252374, 504748, 630935, 1009496, 1261870, 2523740, 3154675, 5047480, 6309350, 12618700, 25237400]

約数ペア:

[(1, 25237400), (2, 12618700), (4, 6309350), (5, 5047480), (8, 3154675), (10, 2523740), (20, 1261870), (25, 1009496), (40, 630935), (50, 504748), (100, 252374), (200, 126187), (257, 98200), (491, 51400), (514, 49100), (982, 25700), (1028, 24550), (1285, 19640), (1964, 12850), (2056, 12275), (2455, 10280), (2570, 9820), (3928, 6425), (4910, 5140)]