809314280

素因数分解:

$2^3\times 5^1\times {\mathrm{5147}}^1\times {\mathrm{3931}}^1$

素因数の和:9089

約数の個数: 32

約数和(自身を含む): 1821774240

約数和(自身を除く): 1012459960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3931, 5147, 7862, 10294, 15724, 19655, 20588, 25735, 31448, 39310, 41176, 51470, 78620, 102940, 157240, 205880, 20232857, 40465714, 80931428, 101164285, 161862856, 202328570, 404657140, 809314280]

約数ペア:

[(1, 809314280), (2, 404657140), (4, 202328570), (5, 161862856), (8, 101164285), (10, 80931428), (20, 40465714), (40, 20232857), (3931, 205880), (5147, 157240), (7862, 102940), (10294, 78620), (15724, 51470), (19655, 41176), (20588, 39310), (25735, 31448)]