19379680

素因数分解:

$2^5\times 5^1\times {\mathrm{121123}}^1$

素因数の和:121138

約数の個数: 24

約数和(自身を含む): 45784872

約数和(自身を除く): 26405192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 121123, 242246, 484492, 605615, 968984, 1211230, 1937968, 2422460, 3875936, 4844920, 9689840, 19379680]

約数ペア:

[(1, 19379680), (2, 9689840), (4, 4844920), (5, 3875936), (8, 2422460), (10, 1937968), (16, 1211230), (20, 968984), (32, 605615), (40, 484492), (80, 242246), (160, 121123)]