77824280

素因数分解:

$2^3\times 5^1\times {\mathrm{1945607}}^1$

素因数の和:1945618

約数の個数: 16

約数和(自身を含む): 175104720

約数和(自身を除く): 97280440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1945607, 3891214, 7782428, 9728035, 15564856, 19456070, 38912140, 77824280]

約数ペア:

[(1, 77824280), (2, 38912140), (4, 19456070), (5, 15564856), (8, 9728035), (10, 7782428), (20, 3891214), (40, 1945607)]