19211680

素因数分解:

$2^5\times 5^1\times {\mathrm{167}}^1\times {\mathrm{719}}^1$

素因数の和:901

約数の個数: 48

約数和(自身を含む): 45722880

約数和(自身を除く): 26511200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 167, 334, 668, 719, 835, 1336, 1438, 1670, 2672, 2876, 3340, 3595, 5344, 5752, 6680, 7190, 11504, 13360, 14380, 23008, 26720, 28760, 57520, 115040, 120073, 240146, 480292, 600365, 960584, 1200730, 1921168, 2401460, 3842336, 4802920, 9605840, 19211680]

約数ペア:

[(1, 19211680), (2, 9605840), (4, 4802920), (5, 3842336), (8, 2401460), (10, 1921168), (16, 1200730), (20, 960584), (32, 600365), (40, 480292), (80, 240146), (160, 120073), (167, 115040), (334, 57520), (668, 28760), (719, 26720), (835, 23008), (1336, 14380), (1438, 13360), (1670, 11504), (2672, 7190), (2876, 6680), (3340, 5752), (3595, 5344)]