262051280

素因数分解:

$2^4\times 5^1\times {\mathrm{809}}^1\times {\mathrm{4049}}^1$

素因数の和:4871

約数の個数: 40

約数和(自身を含む): 610173000

約数和(自身を除く): 348121720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 809, 1618, 3236, 4045, 4049, 6472, 8090, 8098, 12944, 16180, 16196, 20245, 32360, 32392, 40490, 64720, 64784, 80980, 161960, 323920, 3275641, 6551282, 13102564, 16378205, 26205128, 32756410, 52410256, 65512820, 131025640, 262051280]

約数ペア:

[(1, 262051280), (2, 131025640), (4, 65512820), (5, 52410256), (8, 32756410), (10, 26205128), (16, 16378205), (20, 13102564), (40, 6551282), (80, 3275641), (809, 323920), (1618, 161960), (3236, 80980), (4045, 64784), (4049, 64720), (6472, 40490), (8090, 32392), (8098, 32360), (12944, 20245), (16180, 16196)]