805215820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{379}}^1\times {\mathrm{5591}}^1$

素因数の和:5998

約数の個数: 48

約数和(自身を含む): 1784966400

約数和(自身を除く): 979750580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 379, 380, 758, 1516, 1895, 3790, 5591, 7201, 7580, 11182, 14402, 22364, 27955, 28804, 36005, 55910, 72010, 106229, 111820, 144020, 212458, 424916, 531145, 1062290, 2118989, 2124580, 4237978, 8475956, 10594945, 21189890, 40260791, 42379780, 80521582, 161043164, 201303955, 402607910, 805215820]

約数ペア:

[(1, 805215820), (2, 402607910), (4, 201303955), (5, 161043164), (10, 80521582), (19, 42379780), (20, 40260791), (38, 21189890), (76, 10594945), (95, 8475956), (190, 4237978), (379, 2124580), (380, 2118989), (758, 1062290), (1516, 531145), (1895, 424916), (3790, 212458), (5591, 144020), (7201, 111820), (7580, 106229), (11182, 72010), (14402, 55910), (22364, 36005), (27955, 28804)]