12515900

素因数分解:

$2^2\times 5^2\times {\mathrm{257}}^1\times {\mathrm{487}}^1$

素因数の和:758

約数の個数: 36

約数和(自身を含む): 27321168

約数和(自身を除く): 14805268

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 257, 487, 514, 974, 1028, 1285, 1948, 2435, 2570, 4870, 5140, 6425, 9740, 12175, 12850, 24350, 25700, 48700, 125159, 250318, 500636, 625795, 1251590, 2503180, 3128975, 6257950, 12515900]

約数ペア:

[(1, 12515900), (2, 6257950), (4, 3128975), (5, 2503180), (10, 1251590), (20, 625795), (25, 500636), (50, 250318), (100, 125159), (257, 48700), (487, 25700), (514, 24350), (974, 12850), (1028, 12175), (1285, 9740), (1948, 6425), (2435, 5140), (2570, 4870)]