25668400

素因数分解:

$2^4\times 5^2\times {\mathrm{64171}}^1$

素因数の和:64189

約数の個数: 30

約数和(自身を含む): 61669292

約数和(自身を除く): 36000892

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 64171, 128342, 256684, 320855, 513368, 641710, 1026736, 1283420, 1604275, 2566840, 3208550, 5133680, 6417100, 12834200, 25668400]

約数ペア:

[(1, 25668400), (2, 12834200), (4, 6417100), (5, 5133680), (8, 3208550), (10, 2566840), (16, 1604275), (20, 1283420), (25, 1026736), (40, 641710), (50, 513368), (80, 320855), (100, 256684), (200, 128342), (400, 64171)]