80361880

素因数分解:

$2^3\times 5^1\times {\mathrm{1123}}^1\times {\mathrm{1789}}^1$

素因数の和:2923

約数の個数: 32

約数和(自身を含む): 181076400

約数和(自身を除く): 100714520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1123, 1789, 2246, 3578, 4492, 5615, 7156, 8945, 8984, 11230, 14312, 17890, 22460, 35780, 44920, 71560, 2009047, 4018094, 8036188, 10045235, 16072376, 20090470, 40180940, 80361880]

約数ペア:

[(1, 80361880), (2, 40180940), (4, 20090470), (5, 16072376), (8, 10045235), (10, 8036188), (20, 4018094), (40, 2009047), (1123, 71560), (1789, 44920), (2246, 35780), (3578, 22460), (4492, 17890), (5615, 14312), (7156, 11230), (8945, 8984)]