20663136

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^1\times {\mathrm{5519}}^1$

素因数の和:5548

約数の個数: 72

約数和(自身を含む): 63292320

約数和(自身を除く): 42629184

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 72, 78, 96, 104, 117, 144, 156, 208, 234, 288, 312, 416, 468, 624, 936, 1248, 1872, 3744, 5519, 11038, 16557, 22076, 33114, 44152, 49671, 66228, 71747, 88304, 99342, 132456, 143494, 176608, 198684, 215241, 264912, 286988, 397368, 430482, 529824, 573976, 645723, 794736, 860964, 1147952, 1291446, 1589472, 1721928, 2295904, 2582892, 3443856, 5165784, 6887712, 10331568, 20663136]

約数ペア:

[(1, 20663136), (2, 10331568), (3, 6887712), (4, 5165784), (6, 3443856), (8, 2582892), (9, 2295904), (12, 1721928), (13, 1589472), (16, 1291446), (18, 1147952), (24, 860964), (26, 794736), (32, 645723), (36, 573976), (39, 529824), (48, 430482), (52, 397368), (72, 286988), (78, 264912), (96, 215241), (104, 198684), (117, 176608), (144, 143494), (156, 132456), (208, 99342), (234, 88304), (288, 71747), (312, 66228), (416, 49671), (468, 44152), (624, 33114), (936, 22076), (1248, 16557), (1872, 11038), (3744, 5519)]