20177591608

素因数分解:

$2^3\times {\mathrm{79}}^1\times {\mathrm{1949}}^1\times {\mathrm{16381}}^1$

素因数の和:18415

約数の個数: 32

約数和(自身を含む): 38333880000

約数和(自身を除く): 18156288392

約数列:

[1, 2, 4, 8, 79, 158, 316, 632, 1949, 3898, 7796, 15592, 16381, 32762, 65524, 131048, 153971, 307942, 615884, 1231768, 1294099, 2588198, 5176396, 10352792, 31926569, 63853138, 127706276, 255412552, 2522198951, 5044397902, 10088795804, 20177591608]

約数ペア:

[(1, 20177591608), (2, 10088795804), (4, 5044397902), (8, 2522198951), (79, 255412552), (158, 127706276), (316, 63853138), (632, 31926569), (1949, 10352792), (3898, 5176396), (7796, 2588198), (15592, 1294099), (16381, 1231768), (32762, 615884), (65524, 307942), (131048, 153971)]