19208920

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{12979}}^1$

素因数の和:13027

約数の個数: 32

約数和(自身を含む): 44391600

約数和(自身を除く): 25182680

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 12979, 25958, 51916, 64895, 103832, 129790, 259580, 480223, 519160, 960446, 1920892, 2401115, 3841784, 4802230, 9604460, 19208920]

約数ペア:

[(1, 19208920), (2, 9604460), (4, 4802230), (5, 3841784), (8, 2401115), (10, 1920892), (20, 960446), (37, 519160), (40, 480223), (74, 259580), (148, 129790), (185, 103832), (296, 64895), (370, 51916), (740, 25958), (1480, 12979)]