19798040

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{8389}}^1$

素因数の和:8459

約数の個数: 32

約数和(自身を含む): 45306000

約数和(自身を除く): 25507960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 236, 295, 472, 590, 1180, 2360, 8389, 16778, 33556, 41945, 67112, 83890, 167780, 335560, 494951, 989902, 1979804, 2474755, 3959608, 4949510, 9899020, 19798040]

約数ペア:

[(1, 19798040), (2, 9899020), (4, 4949510), (5, 3959608), (8, 2474755), (10, 1979804), (20, 989902), (40, 494951), (59, 335560), (118, 167780), (236, 83890), (295, 67112), (472, 41945), (590, 33556), (1180, 16778), (2360, 8389)]