128589328

素因数分解:

$2^4\times 7^3\times {\mathrm{23431}}^1$

素因数の和:23460

約数の個数: 40

約数和(自身を含む): 290556800

約数和(自身を除く): 161967472

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 343, 392, 686, 784, 1372, 2744, 5488, 23431, 46862, 93724, 164017, 187448, 328034, 374896, 656068, 1148119, 1312136, 2296238, 2624272, 4592476, 8036833, 9184952, 16073666, 18369904, 32147332, 64294664, 128589328]

約数ペア:

[(1, 128589328), (2, 64294664), (4, 32147332), (7, 18369904), (8, 16073666), (14, 9184952), (16, 8036833), (28, 4592476), (49, 2624272), (56, 2296238), (98, 1312136), (112, 1148119), (196, 656068), (343, 374896), (392, 328034), (686, 187448), (784, 164017), (1372, 93724), (2744, 46862), (5488, 23431)]