129771248

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{188621}}^1$

素因数の和:188672

約数の個数: 20

約数和(自身を含む): 257280408

約数和(自身を除く): 127509160

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 188621, 377242, 754484, 1508968, 3017936, 8110703, 16221406, 32442812, 64885624, 129771248]

約数ペア:

[(1, 129771248), (2, 64885624), (4, 32442812), (8, 16221406), (16, 8110703), (43, 3017936), (86, 1508968), (172, 754484), (344, 377242), (688, 188621)]