20105344

素因数分解:

$2^7\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1181}}^1$

素因数の和:1221

約数の個数: 64

約数和(自身を含む): 48225600

約数和(自身を除く): 28120256

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 56, 64, 76, 112, 128, 133, 152, 224, 266, 304, 448, 532, 608, 896, 1064, 1181, 1216, 2128, 2362, 2432, 4256, 4724, 8267, 8512, 9448, 16534, 17024, 18896, 22439, 33068, 37792, 44878, 66136, 75584, 89756, 132272, 151168, 157073, 179512, 264544, 314146, 359024, 529088, 628292, 718048, 1058176, 1256584, 1436096, 2513168, 2872192, 5026336, 10052672, 20105344]

約数ペア:

[(1, 20105344), (2, 10052672), (4, 5026336), (7, 2872192), (8, 2513168), (14, 1436096), (16, 1256584), (19, 1058176), (28, 718048), (32, 628292), (38, 529088), (56, 359024), (64, 314146), (76, 264544), (112, 179512), (128, 157073), (133, 151168), (152, 132272), (224, 89756), (266, 75584), (304, 66136), (448, 44878), (532, 37792), (608, 33068), (896, 22439), (1064, 18896), (1181, 17024), (1216, 16534), (2128, 9448), (2362, 8512), (2432, 8267), (4256, 4724)]