2789980

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{701}}^1$

素因数の和:909

約数の個数: 24

約数和(自身を含む): 5896800

約数和(自身を除く): 3106820

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 701, 796, 995, 1402, 1990, 2804, 3505, 3980, 7010, 14020, 139499, 278998, 557996, 697495, 1394990, 2789980]

約数ペア:

[(1, 2789980), (2, 1394990), (4, 697495), (5, 557996), (10, 278998), (20, 139499), (199, 14020), (398, 7010), (701, 3980), (796, 3505), (995, 2804), (1402, 1990)]