257150384

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{220163}}^1$

素因数の和:220244

約数の個数: 20

約数和(自身を含む): 505056216

約数和(自身を除く): 247905832

約数列:

[1, 2, 4, 8, 16, 73, 146, 292, 584, 1168, 220163, 440326, 880652, 1761304, 3522608, 16071899, 32143798, 64287596, 128575192, 257150384]

約数ペア:

[(1, 257150384), (2, 128575192), (4, 64287596), (8, 32143798), (16, 16071899), (73, 3522608), (146, 1761304), (292, 880652), (584, 440326), (1168, 220163)]