209447728

素因数分解:

$2^4\times 7^1\times {\mathrm{71}}^1\times {\mathrm{26339}}^1$

素因数の和:26425

約数の個数: 40

約数和(自身を含む): 470327040

約数和(自身を除く): 260879312

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 71, 112, 142, 284, 497, 568, 994, 1136, 1988, 3976, 7952, 26339, 52678, 105356, 184373, 210712, 368746, 421424, 737492, 1474984, 1870069, 2949968, 3740138, 7480276, 13090483, 14960552, 26180966, 29921104, 52361932, 104723864, 209447728]

約数ペア:

[(1, 209447728), (2, 104723864), (4, 52361932), (7, 29921104), (8, 26180966), (14, 14960552), (16, 13090483), (28, 7480276), (56, 3740138), (71, 2949968), (112, 1870069), (142, 1474984), (284, 737492), (497, 421424), (568, 368746), (994, 210712), (1136, 184373), (1988, 105356), (3976, 52678), (7952, 26339)]