12937840

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3761}}^1$

素因数の和:3817

約数の個数: 40

約数和(自身を含む): 30788208

約数和(自身を除く): 17850368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 3761, 7522, 15044, 18805, 30088, 37610, 60176, 75220, 150440, 161723, 300880, 323446, 646892, 808615, 1293784, 1617230, 2587568, 3234460, 6468920, 12937840]

約数ペア:

[(1, 12937840), (2, 6468920), (4, 3234460), (5, 2587568), (8, 1617230), (10, 1293784), (16, 808615), (20, 646892), (40, 323446), (43, 300880), (80, 161723), (86, 150440), (172, 75220), (215, 60176), (344, 37610), (430, 30088), (688, 18805), (860, 15044), (1720, 7522), (3440, 3761)]