20104143904

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{307817}}^1$

素因数の和:307997

約数の個数: 48

約数和(自身を含む): 42896285208

約数和(自身を除く): 22792141304

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 157, 208, 314, 416, 628, 1256, 2041, 2512, 4082, 5024, 8164, 16328, 32656, 65312, 307817, 615634, 1231268, 2462536, 4001621, 4925072, 8003242, 9850144, 16006484, 32012968, 48327269, 64025936, 96654538, 128051872, 193309076, 386618152, 628254497, 773236304, 1256508994, 1546472608, 2513017988, 5026035976, 10052071952, 20104143904]

約数ペア:

[(1, 20104143904), (2, 10052071952), (4, 5026035976), (8, 2513017988), (13, 1546472608), (16, 1256508994), (26, 773236304), (32, 628254497), (52, 386618152), (104, 193309076), (157, 128051872), (208, 96654538), (314, 64025936), (416, 48327269), (628, 32012968), (1256, 16006484), (2041, 9850144), (2512, 8003242), (4082, 4925072), (5024, 4001621), (8164, 2462536), (16328, 1231268), (32656, 615634), (65312, 307817)]