496780400

素因数分解:

$2^4\times 5^2\times {\mathrm{1241951}}^1$

素因数の和:1241969

約数の個数: 30

約数和(自身を含む): 1193515872

約数和(自身を除く): 696735472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 1241951, 2483902, 4967804, 6209755, 9935608, 12419510, 19871216, 24839020, 31048775, 49678040, 62097550, 99356080, 124195100, 248390200, 496780400]

約数ペア:

[(1, 496780400), (2, 248390200), (4, 124195100), (5, 99356080), (8, 62097550), (10, 49678040), (16, 31048775), (20, 24839020), (25, 19871216), (40, 12419510), (50, 9935608), (80, 6209755), (100, 4967804), (200, 2483902), (400, 1241951)]