1940200

素因数分解:

$2^3\times 5^2\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 4603500

約数和(自身を除く): 2663300

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 89, 100, 109, 178, 200, 218, 356, 436, 445, 545, 712, 872, 890, 1090, 1780, 2180, 2225, 2725, 3560, 4360, 4450, 5450, 8900, 9701, 10900, 17800, 19402, 21800, 38804, 48505, 77608, 97010, 194020, 242525, 388040, 485050, 970100, 1940200]

約数ペア:

[(1, 1940200), (2, 970100), (4, 485050), (5, 388040), (8, 242525), (10, 194020), (20, 97010), (25, 77608), (40, 48505), (50, 38804), (89, 21800), (100, 19402), (109, 17800), (178, 10900), (200, 9701), (218, 8900), (356, 5450), (436, 4450), (445, 4360), (545, 3560), (712, 2725), (872, 2225), (890, 2180), (1090, 1780)]