28160121388

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{745529}}^1$

素因数の和:745630

約数の個数: 48

約数和(自身を含む): 60119539200

約数和(自身を除く): 31959417812

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 71, 76, 133, 142, 266, 284, 497, 532, 994, 1349, 1988, 2698, 5396, 9443, 18886, 37772, 745529, 1491058, 2982116, 5218703, 10437406, 14165051, 20874812, 28330102, 52932559, 56660204, 99155357, 105865118, 198310714, 211730236, 370527913, 396621428, 741055826, 1005718621, 1482111652, 2011437242, 4022874484, 7040030347, 14080060694, 28160121388]

約数ペア:

[(1, 28160121388), (2, 14080060694), (4, 7040030347), (7, 4022874484), (14, 2011437242), (19, 1482111652), (28, 1005718621), (38, 741055826), (71, 396621428), (76, 370527913), (133, 211730236), (142, 198310714), (266, 105865118), (284, 99155357), (497, 56660204), (532, 52932559), (994, 28330102), (1349, 20874812), (1988, 14165051), (2698, 10437406), (5396, 5218703), (9443, 2982116), (18886, 1491058), (37772, 745529)]