20803460

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{5227}}^1$

素因数の和:5435

約数の個数: 24

約数和(自身を含む): 43915200

約数和(自身を除く): 23111740

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 5227, 10454, 20908, 26135, 52270, 104540, 1040173, 2080346, 4160692, 5200865, 10401730, 20803460]

約数ペア:

[(1, 20803460), (2, 10401730), (4, 5200865), (5, 4160692), (10, 2080346), (20, 1040173), (199, 104540), (398, 52270), (796, 26135), (995, 20908), (1990, 10454), (3980, 5227)]