20726048

素因数分解:

$2^5\times 7^1\times {\mathrm{67}}^1\times {\mathrm{1381}}^1$

素因数の和:1465

約数の個数: 48

約数和(自身を含む): 47363904

約数和(自身を除く): 26637856

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 67, 112, 134, 224, 268, 469, 536, 938, 1072, 1381, 1876, 2144, 2762, 3752, 5524, 7504, 9667, 11048, 15008, 19334, 22096, 38668, 44192, 77336, 92527, 154672, 185054, 309344, 370108, 647689, 740216, 1295378, 1480432, 2590756, 2960864, 5181512, 10363024, 20726048]

約数ペア:

[(1, 20726048), (2, 10363024), (4, 5181512), (7, 2960864), (8, 2590756), (14, 1480432), (16, 1295378), (28, 740216), (32, 647689), (56, 370108), (67, 309344), (112, 185054), (134, 154672), (224, 92527), (268, 77336), (469, 44192), (536, 38668), (938, 22096), (1072, 19334), (1381, 15008), (1876, 11048), (2144, 9667), (2762, 7504), (3752, 5524)]