19166320

素因数分解:

$2^4\times 5^1\times {\mathrm{239579}}^1$

素因数の和:239592

約数の個数: 20

約数和(自身を含む): 44561880

約数和(自身を除く): 25395560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 239579, 479158, 958316, 1197895, 1916632, 2395790, 3833264, 4791580, 9583160, 19166320]

約数ペア:

[(1, 19166320), (2, 9583160), (4, 4791580), (5, 3833264), (8, 2395790), (10, 1916632), (16, 1197895), (20, 958316), (40, 479158), (80, 239579)]