20988950

素因数分解:

$2^1\times 5^2\times {\mathrm{271}}^1\times {\mathrm{1549}}^1$

素因数の和:1832

約数の個数: 24

約数和(自身を含む): 39208800

約数和(自身を除く): 18219850

約数列:

[1, 2, 5, 10, 25, 50, 271, 542, 1355, 1549, 2710, 3098, 6775, 7745, 13550, 15490, 38725, 77450, 419779, 839558, 2098895, 4197790, 10494475, 20988950]

約数ペア:

[(1, 20988950), (2, 10494475), (5, 4197790), (10, 2098895), (25, 839558), (50, 419779), (271, 77450), (542, 38725), (1355, 15490), (1549, 13550), (2710, 7745), (3098, 6775)]