30811120

素因数分解:

$2^4\times 5^1\times {\mathrm{385139}}^1$

素因数の和:385152

約数の個数: 20

約数和(自身を含む): 71636040

約数和(自身を除く): 40824920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 385139, 770278, 1540556, 1925695, 3081112, 3851390, 6162224, 7702780, 15405560, 30811120]

約数ペア:

[(1, 30811120), (2, 15405560), (4, 7702780), (5, 6162224), (8, 3851390), (10, 3081112), (16, 1925695), (20, 1540556), (40, 770278), (80, 385139)]