26380400

素因数分解:

$2^4\times 5^2\times {\mathrm{65951}}^1$

素因数の和:65969

約数の個数: 30

約数和(自身を含む): 63379872

約数和(自身を除く): 36999472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 65951, 131902, 263804, 329755, 527608, 659510, 1055216, 1319020, 1648775, 2638040, 3297550, 5276080, 6595100, 13190200, 26380400]

約数ペア:

[(1, 26380400), (2, 13190200), (4, 6595100), (5, 5276080), (8, 3297550), (10, 2638040), (16, 1648775), (20, 1319020), (25, 1055216), (40, 659510), (50, 527608), (80, 329755), (100, 263804), (200, 131902), (400, 65951)]