18859760

素因数分解:

$2^4\times 5^1\times {\mathrm{235747}}^1$

素因数の和:235760

約数の個数: 20

約数和(自身を含む): 43849128

約数和(自身を除く): 24989368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 235747, 471494, 942988, 1178735, 1885976, 2357470, 3771952, 4714940, 9429880, 18859760]

約数ペア:

[(1, 18859760), (2, 9429880), (4, 4714940), (5, 3771952), (8, 2357470), (10, 1885976), (16, 1178735), (20, 942988), (40, 471494), (80, 235747)]