8805020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{577}}^1$

素因数の和:702

約数の個数: 48

約数和(自身を含む): 21362880

約数和(自身を除く): 12557860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 109, 140, 218, 436, 545, 577, 763, 1090, 1154, 1526, 2180, 2308, 2885, 3052, 3815, 4039, 5770, 7630, 8078, 11540, 15260, 16156, 20195, 40390, 62893, 80780, 125786, 251572, 314465, 440251, 628930, 880502, 1257860, 1761004, 2201255, 4402510, 8805020]

約数ペア:

[(1, 8805020), (2, 4402510), (4, 2201255), (5, 1761004), (7, 1257860), (10, 880502), (14, 628930), (20, 440251), (28, 314465), (35, 251572), (70, 125786), (109, 80780), (140, 62893), (218, 40390), (436, 20195), (545, 16156), (577, 15260), (763, 11540), (1090, 8078), (1154, 7630), (1526, 5770), (2180, 4039), (2308, 3815), (2885, 3052)]