19417040

素因数分解:

$2^4\times 5^1\times {\mathrm{242713}}^1$

素因数の和:242726

約数の個数: 20

約数和(自身を含む): 45144804

約数和(自身を除く): 25727764

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 242713, 485426, 970852, 1213565, 1941704, 2427130, 3883408, 4854260, 9708520, 19417040]

約数ペア:

[(1, 19417040), (2, 9708520), (4, 4854260), (5, 3883408), (8, 2427130), (10, 1941704), (16, 1213565), (20, 970852), (40, 485426), (80, 242713)]