1921240

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1117}}^1$

素因数の和:1171

約数の個数: 32

約数和(自身を含む): 4427280

約数和(自身を除く): 2506040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1117, 1720, 2234, 4468, 5585, 8936, 11170, 22340, 44680, 48031, 96062, 192124, 240155, 384248, 480310, 960620, 1921240]

約数ペア:

[(1, 1921240), (2, 960620), (4, 480310), (5, 384248), (8, 240155), (10, 192124), (20, 96062), (40, 48031), (43, 44680), (86, 22340), (172, 11170), (215, 8936), (344, 5585), (430, 4468), (860, 2234), (1117, 1720)]