18387280

素因数分解:

$2^4\times 5^1\times {\mathrm{229841}}^1$

素因数の和:229854

約数の個数: 20

約数和(自身を含む): 42750612

約数和(自身を除く): 24363332

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 229841, 459682, 919364, 1149205, 1838728, 2298410, 3677456, 4596820, 9193640, 18387280]

約数ペア:

[(1, 18387280), (2, 9193640), (4, 4596820), (5, 3677456), (8, 2298410), (10, 1838728), (16, 1149205), (20, 919364), (40, 459682), (80, 229841)]