21624080

素因数分解:

$2^4\times 5^1\times {\mathrm{137}}^1\times {\mathrm{1973}}^1$

素因数の和:2123

約数の個数: 40

約数和(自身を含む): 50668632

約数和(自身を除く): 29044552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 137, 274, 548, 685, 1096, 1370, 1973, 2192, 2740, 3946, 5480, 7892, 9865, 10960, 15784, 19730, 31568, 39460, 78920, 157840, 270301, 540602, 1081204, 1351505, 2162408, 2703010, 4324816, 5406020, 10812040, 21624080]

約数ペア:

[(1, 21624080), (2, 10812040), (4, 5406020), (5, 4324816), (8, 2703010), (10, 2162408), (16, 1351505), (20, 1081204), (40, 540602), (80, 270301), (137, 157840), (274, 78920), (548, 39460), (685, 31568), (1096, 19730), (1370, 15784), (1973, 10960), (2192, 9865), (2740, 7892), (3946, 5480)]