400886495

素因数分解:

$5^1\times {\mathrm{199}}^1\times {\mathrm{617}}^1\times {\mathrm{653}}^1$

素因数の和:1474

約数の個数: 16

約数和(自身を含む): 485006400

約数和(自身を除く): 84119905

約数列:

[1, 5, 199, 617, 653, 995, 3085, 3265, 122783, 129947, 402901, 613915, 649735, 2014505, 80177299, 400886495]

約数ペア:

[(1, 400886495), (5, 80177299), (199, 2014505), (617, 649735), (653, 613915), (995, 402901), (3085, 129947), (3265, 122783)]