388978864

素因数分解:

$2^4\times {\mathrm{197}}^1\times {\mathrm{123407}}^1$

素因数の和:123612

約数の個数: 20

約数和(自身を含む): 757478304

約数和(自身を除く): 368499440

約数列:

[1, 2, 4, 8, 16, 197, 394, 788, 1576, 3152, 123407, 246814, 493628, 987256, 1974512, 24311179, 48622358, 97244716, 194489432, 388978864]

約数ペア:

[(1, 388978864), (2, 194489432), (4, 97244716), (8, 48622358), (16, 24311179), (197, 1974512), (394, 987256), (788, 493628), (1576, 246814), (3152, 123407)]