2001860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{181}}^1$

素因数の和:276

約数の個数: 48

約数和(自身を含む): 4892160

約数和(自身を除く): 2890300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 79, 140, 158, 181, 316, 362, 395, 553, 724, 790, 905, 1106, 1267, 1580, 1810, 2212, 2534, 2765, 3620, 5068, 5530, 6335, 11060, 12670, 14299, 25340, 28598, 57196, 71495, 100093, 142990, 200186, 285980, 400372, 500465, 1000930, 2001860]

約数ペア:

[(1, 2001860), (2, 1000930), (4, 500465), (5, 400372), (7, 285980), (10, 200186), (14, 142990), (20, 100093), (28, 71495), (35, 57196), (70, 28598), (79, 25340), (140, 14299), (158, 12670), (181, 11060), (316, 6335), (362, 5530), (395, 5068), (553, 3620), (724, 2765), (790, 2534), (905, 2212), (1106, 1810), (1267, 1580)]