2131880

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{239}}^1$

素因数の和:473

約数の個数: 32

約数和(自身を含む): 4838400

約数和(自身を除く): 2706520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 239, 446, 478, 892, 956, 1115, 1195, 1784, 1912, 2230, 2390, 4460, 4780, 8920, 9560, 53297, 106594, 213188, 266485, 426376, 532970, 1065940, 2131880]

約数ペア:

[(1, 2131880), (2, 1065940), (4, 532970), (5, 426376), (8, 266485), (10, 213188), (20, 106594), (40, 53297), (223, 9560), (239, 8920), (446, 4780), (478, 4460), (892, 2390), (956, 2230), (1115, 1912), (1195, 1784)]