80956240

素因数分解:

$2^4\times 5^1\times {\mathrm{397}}^1\times {\mathrm{2549}}^1$

素因数の和:2959

約数の個数: 40

約数和(自身を含む): 188771400

約数和(自身を除く): 107815160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 397, 794, 1588, 1985, 2549, 3176, 3970, 5098, 6352, 7940, 10196, 12745, 15880, 20392, 25490, 31760, 40784, 50980, 101960, 203920, 1011953, 2023906, 4047812, 5059765, 8095624, 10119530, 16191248, 20239060, 40478120, 80956240]

約数ペア:

[(1, 80956240), (2, 40478120), (4, 20239060), (5, 16191248), (8, 10119530), (10, 8095624), (16, 5059765), (20, 4047812), (40, 2023906), (80, 1011953), (397, 203920), (794, 101960), (1588, 50980), (1985, 40784), (2549, 31760), (3176, 25490), (3970, 20392), (5098, 15880), (6352, 12745), (7940, 10196)]