28721848

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{1123}}^1$

素因数の和:1291

約数の個数: 32

約数和(自身を含む): 56649600

約数和(自身を除く): 27927752

約数列:

[1, 2, 4, 8, 23, 46, 92, 139, 184, 278, 556, 1112, 1123, 2246, 3197, 4492, 6394, 8984, 12788, 25576, 25829, 51658, 103316, 156097, 206632, 312194, 624388, 1248776, 3590231, 7180462, 14360924, 28721848]

約数ペア:

[(1, 28721848), (2, 14360924), (4, 7180462), (8, 3590231), (23, 1248776), (46, 624388), (92, 312194), (139, 206632), (184, 156097), (278, 103316), (556, 51658), (1112, 25829), (1123, 25576), (2246, 12788), (3197, 8984), (4492, 6394)]