20657880

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{57383}}^1$

素因数の和:57400

約数の個数: 48

約数和(自身を含む): 67139280

約数和(自身を除く): 46481400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 57383, 114766, 172149, 229532, 286915, 344298, 459064, 516447, 573830, 688596, 860745, 1032894, 1147660, 1377192, 1721490, 2065788, 2295320, 2582235, 3442980, 4131576, 5164470, 6885960, 10328940, 20657880]

約数ペア:

[(1, 20657880), (2, 10328940), (3, 6885960), (4, 5164470), (5, 4131576), (6, 3442980), (8, 2582235), (9, 2295320), (10, 2065788), (12, 1721490), (15, 1377192), (18, 1147660), (20, 1032894), (24, 860745), (30, 688596), (36, 573830), (40, 516447), (45, 459064), (60, 344298), (72, 286915), (90, 229532), (120, 172149), (180, 114766), (360, 57383)]