19028840

素因数分解:

$2^3\times 5^1\times {\mathrm{475721}}^1$

素因数の和:475732

約数の個数: 16

約数和(自身を含む): 42814980

約数和(自身を除く): 23786140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 475721, 951442, 1902884, 2378605, 3805768, 4757210, 9514420, 19028840]

約数ペア:

[(1, 19028840), (2, 9514420), (4, 4757210), (5, 3805768), (8, 2378605), (10, 1902884), (20, 951442), (40, 475721)]