20247880

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{13681}}^1$

素因数の和:13729

約数の個数: 32

約数和(自身を含む): 46792440

約数和(自身を除く): 26544560

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 13681, 27362, 54724, 68405, 109448, 136810, 273620, 506197, 547240, 1012394, 2024788, 2530985, 4049576, 5061970, 10123940, 20247880]

約数ペア:

[(1, 20247880), (2, 10123940), (4, 5061970), (5, 4049576), (8, 2530985), (10, 2024788), (20, 1012394), (37, 547240), (40, 506197), (74, 273620), (148, 136810), (185, 109448), (296, 68405), (370, 54724), (740, 27362), (1480, 13681)]