12816580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2129}}^1$

素因数の和:2188

約数の個数: 48

約数和(自身を含む): 31489920

約数和(自身を除く): 18673340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 140, 172, 215, 301, 430, 602, 860, 1204, 1505, 2129, 3010, 4258, 6020, 8516, 10645, 14903, 21290, 29806, 42580, 59612, 74515, 91547, 149030, 183094, 298060, 366188, 457735, 640829, 915470, 1281658, 1830940, 2563316, 3204145, 6408290, 12816580]

約数ペア:

[(1, 12816580), (2, 6408290), (4, 3204145), (5, 2563316), (7, 1830940), (10, 1281658), (14, 915470), (20, 640829), (28, 457735), (35, 366188), (43, 298060), (70, 183094), (86, 149030), (140, 91547), (172, 74515), (215, 59612), (301, 42580), (430, 29806), (602, 21290), (860, 14903), (1204, 10645), (1505, 8516), (2129, 6020), (3010, 4258)]