2867240

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1667}}^1$

素因数の和:1721

約数の個数: 32

約数和(自身を含む): 6605280

約数和(自身を除く): 3738040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1667, 1720, 3334, 6668, 8335, 13336, 16670, 33340, 66680, 71681, 143362, 286724, 358405, 573448, 716810, 1433620, 2867240]

約数ペア:

[(1, 2867240), (2, 1433620), (4, 716810), (5, 573448), (8, 358405), (10, 286724), (20, 143362), (40, 71681), (43, 66680), (86, 33340), (172, 16670), (215, 13336), (344, 8335), (430, 6668), (860, 3334), (1667, 1720)]