61491376

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{643}}^1$

素因数の和:833

約数の個数: 40

約数和(自身を含む): 122978240

約数和(自身を除く): 61486864

約数列:

[1, 2, 4, 8, 16, 43, 86, 139, 172, 278, 344, 556, 643, 688, 1112, 1286, 2224, 2572, 5144, 5977, 10288, 11954, 23908, 27649, 47816, 55298, 89377, 95632, 110596, 178754, 221192, 357508, 442384, 715016, 1430032, 3843211, 7686422, 15372844, 30745688, 61491376]

約数ペア:

[(1, 61491376), (2, 30745688), (4, 15372844), (8, 7686422), (16, 3843211), (43, 1430032), (86, 715016), (139, 442384), (172, 357508), (278, 221192), (344, 178754), (556, 110596), (643, 95632), (688, 89377), (1112, 55298), (1286, 47816), (2224, 27649), (2572, 23908), (5144, 11954), (5977, 10288)]