20705584

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{16381}}^1$

素因数の和:16468

約数の個数: 20

約数和(自身を含む): 40627360

約数和(自身を除く): 19921776

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 16381, 32762, 65524, 131048, 262096, 1294099, 2588198, 5176396, 10352792, 20705584]

約数ペア:

[(1, 20705584), (2, 10352792), (4, 5176396), (8, 2588198), (16, 1294099), (79, 262096), (158, 131048), (316, 65524), (632, 32762), (1264, 16381)]