31283140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{439}}^1\times {\mathrm{509}}^1$

素因数の和:964

約数の個数: 48

約数和(自身を含む): 75398400

約数和(自身を除く): 44115260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 439, 509, 878, 1018, 1756, 2036, 2195, 2545, 3073, 3563, 4390, 5090, 6146, 7126, 8780, 10180, 12292, 14252, 15365, 17815, 30730, 35630, 61460, 71260, 223451, 446902, 893804, 1117255, 1564157, 2234510, 3128314, 4469020, 6256628, 7820785, 15641570, 31283140]

約数ペア:

[(1, 31283140), (2, 15641570), (4, 7820785), (5, 6256628), (7, 4469020), (10, 3128314), (14, 2234510), (20, 1564157), (28, 1117255), (35, 893804), (70, 446902), (140, 223451), (439, 71260), (509, 61460), (878, 35630), (1018, 30730), (1756, 17815), (2036, 15365), (2195, 14252), (2545, 12292), (3073, 10180), (3563, 8780), (4390, 7126), (5090, 6146)]