209938900

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{48823}}^1$

素因数の和:48880

約数の個数: 36

約数和(自身を含む): 466171552

約数和(自身を除く): 256232652

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 172, 215, 430, 860, 1075, 2150, 4300, 48823, 97646, 195292, 244115, 488230, 976460, 1220575, 2099389, 2441150, 4198778, 4882300, 8397556, 10496945, 20993890, 41987780, 52484725, 104969450, 209938900]

約数ペア:

[(1, 209938900), (2, 104969450), (4, 52484725), (5, 41987780), (10, 20993890), (20, 10496945), (25, 8397556), (43, 4882300), (50, 4198778), (86, 2441150), (100, 2099389), (172, 1220575), (215, 976460), (430, 488230), (860, 244115), (1075, 195292), (2150, 97646), (4300, 48823)]