2173460

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{997}}^1$

素因数の和:1115

約数の個数: 24

約数和(自身を含む): 4610760

約数和(自身を除く): 2437300

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 997, 1090, 1994, 2180, 3988, 4985, 9970, 19940, 108673, 217346, 434692, 543365, 1086730, 2173460]

約数ペア:

[(1, 2173460), (2, 1086730), (4, 543365), (5, 434692), (10, 217346), (20, 108673), (109, 19940), (218, 9970), (436, 4985), (545, 3988), (997, 2180), (1090, 1994)]