78740920

素因数分解:

$2^3\times 5^1\times {\mathrm{1051}}^1\times {\mathrm{1873}}^1$

素因数の和:2935

約数の個数: 32

約数和(自身を含む): 177430320

約数和(自身を除く): 98689400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1051, 1873, 2102, 3746, 4204, 5255, 7492, 8408, 9365, 10510, 14984, 18730, 21020, 37460, 42040, 74920, 1968523, 3937046, 7874092, 9842615, 15748184, 19685230, 39370460, 78740920]

約数ペア:

[(1, 78740920), (2, 39370460), (4, 19685230), (5, 15748184), (8, 9842615), (10, 7874092), (20, 3937046), (40, 1968523), (1051, 74920), (1873, 42040), (2102, 37460), (3746, 21020), (4204, 18730), (5255, 14984), (7492, 10510), (8408, 9365)]