81103820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{82759}}^1$

素因数の和:82782

約数の個数: 36

約数和(自身を含む): 198127440

約数和(自身を除く): 117023620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 82759, 165518, 331036, 413795, 579313, 827590, 1158626, 1655180, 2317252, 2896565, 4055191, 5793130, 8110382, 11586260, 16220764, 20275955, 40551910, 81103820]

約数ペア:

[(1, 81103820), (2, 40551910), (4, 20275955), (5, 16220764), (7, 11586260), (10, 8110382), (14, 5793130), (20, 4055191), (28, 2896565), (35, 2317252), (49, 1655180), (70, 1158626), (98, 827590), (140, 579313), (196, 413795), (245, 331036), (490, 165518), (980, 82759)]