19081520

素因数分解:

$2^4\times 5^1\times {\mathrm{238519}}^1$

素因数の和:238532

約数の個数: 20

約数和(自身を含む): 44364720

約数和(自身を除く): 25283200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 238519, 477038, 954076, 1192595, 1908152, 2385190, 3816304, 4770380, 9540760, 19081520]

約数ペア:

[(1, 19081520), (2, 9540760), (4, 4770380), (5, 3816304), (8, 2385190), (10, 1908152), (16, 1192595), (20, 954076), (40, 477038), (80, 238519)]