13398280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{439}}^1$

素因数の和:566

約数の個数: 64

約数和(自身を含む): 34848000

約数和(自身を除く): 21449720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 109, 140, 218, 280, 436, 439, 545, 763, 872, 878, 1090, 1526, 1756, 2180, 2195, 3052, 3073, 3512, 3815, 4360, 4390, 6104, 6146, 7630, 8780, 12292, 15260, 15365, 17560, 24584, 30520, 30730, 47851, 61460, 95702, 122920, 191404, 239255, 334957, 382808, 478510, 669914, 957020, 1339828, 1674785, 1914040, 2679656, 3349570, 6699140, 13398280]

約数ペア:

[(1, 13398280), (2, 6699140), (4, 3349570), (5, 2679656), (7, 1914040), (8, 1674785), (10, 1339828), (14, 957020), (20, 669914), (28, 478510), (35, 382808), (40, 334957), (56, 239255), (70, 191404), (109, 122920), (140, 95702), (218, 61460), (280, 47851), (436, 30730), (439, 30520), (545, 24584), (763, 17560), (872, 15365), (878, 15260), (1090, 12292), (1526, 8780), (1756, 7630), (2180, 6146), (2195, 6104), (3052, 4390), (3073, 4360), (3512, 3815)]