18618784

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{271}}^1$

素因数の和:413

約数の個数: 48

約数和(自身を含む): 39070080

約数和(自身を除く): 20451296

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 113, 152, 226, 271, 304, 452, 542, 608, 904, 1084, 1808, 2147, 2168, 3616, 4294, 4336, 5149, 8588, 8672, 10298, 17176, 20596, 30623, 34352, 41192, 61246, 68704, 82384, 122492, 164768, 244984, 489968, 581837, 979936, 1163674, 2327348, 4654696, 9309392, 18618784]

約数ペア:

[(1, 18618784), (2, 9309392), (4, 4654696), (8, 2327348), (16, 1163674), (19, 979936), (32, 581837), (38, 489968), (76, 244984), (113, 164768), (152, 122492), (226, 82384), (271, 68704), (304, 61246), (452, 41192), (542, 34352), (608, 30623), (904, 20596), (1084, 17176), (1808, 10298), (2147, 8672), (2168, 8588), (3616, 5149), (4294, 4336)]