68668400

素因数分解:

$2^4\times 5^2\times {\mathrm{171671}}^1$

素因数の和:171689

約数の個数: 30

約数和(自身を含む): 164976792

約数和(自身を除く): 96308392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 171671, 343342, 686684, 858355, 1373368, 1716710, 2746736, 3433420, 4291775, 6866840, 8583550, 13733680, 17167100, 34334200, 68668400]

約数ペア:

[(1, 68668400), (2, 34334200), (4, 17167100), (5, 13733680), (8, 8583550), (10, 6866840), (16, 4291775), (20, 3433420), (25, 2746736), (40, 1716710), (50, 1373368), (80, 858355), (100, 686684), (200, 343342), (400, 171671)]