20790896

素因数分解:

$2^4\times 7^2\times {\mathrm{23}}^1\times {\mathrm{1153}}^1$

素因数の和:1198

約数の個数: 60

約数和(自身を含む): 48938832

約数和(自身を除く): 28147936

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 49, 56, 92, 98, 112, 161, 184, 196, 322, 368, 392, 644, 784, 1127, 1153, 1288, 2254, 2306, 2576, 4508, 4612, 8071, 9016, 9224, 16142, 18032, 18448, 26519, 32284, 53038, 56497, 64568, 106076, 112994, 129136, 185633, 212152, 225988, 371266, 424304, 451976, 742532, 903952, 1299431, 1485064, 2598862, 2970128, 5197724, 10395448, 20790896]

約数ペア:

[(1, 20790896), (2, 10395448), (4, 5197724), (7, 2970128), (8, 2598862), (14, 1485064), (16, 1299431), (23, 903952), (28, 742532), (46, 451976), (49, 424304), (56, 371266), (92, 225988), (98, 212152), (112, 185633), (161, 129136), (184, 112994), (196, 106076), (322, 64568), (368, 56497), (392, 53038), (644, 32284), (784, 26519), (1127, 18448), (1153, 18032), (1288, 16142), (2254, 9224), (2306, 9016), (2576, 8071), (4508, 4612)]