66628400

素因数分解:

$2^4\times 5^2\times {\mathrm{166571}}^1$

素因数の和:166589

約数の個数: 30

約数和(自身を含む): 160075692

約数和(自身を除く): 93447292

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 166571, 333142, 666284, 832855, 1332568, 1665710, 2665136, 3331420, 4164275, 6662840, 8328550, 13325680, 16657100, 33314200, 66628400]

約数ペア:

[(1, 66628400), (2, 33314200), (4, 16657100), (5, 13325680), (8, 8328550), (10, 6662840), (16, 4164275), (20, 3331420), (25, 2665136), (40, 1665710), (50, 1332568), (80, 832855), (100, 666284), (200, 333142), (400, 166571)]