131120560

素因数分解:

$2^4\times 5^1\times {\mathrm{643}}^1\times {\mathrm{2549}}^1$

素因数の和:3205

約数の個数: 40

約数和(自身を含む): 305449200

約数和(自身を除く): 174328640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 643, 1286, 2549, 2572, 3215, 5098, 5144, 6430, 10196, 10288, 12745, 12860, 20392, 25490, 25720, 40784, 50980, 51440, 101960, 203920, 1639007, 3278014, 6556028, 8195035, 13112056, 16390070, 26224112, 32780140, 65560280, 131120560]

約数ペア:

[(1, 131120560), (2, 65560280), (4, 32780140), (5, 26224112), (8, 16390070), (10, 13112056), (16, 8195035), (20, 6556028), (40, 3278014), (80, 1639007), (643, 203920), (1286, 101960), (2549, 51440), (2572, 50980), (3215, 40784), (5098, 25720), (5144, 25490), (6430, 20392), (10196, 12860), (10288, 12745)]