1391480

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{809}}^1$

素因数の和:863

約数の個数: 32

約数和(自身を含む): 3207600

約数和(自身を除く): 1816120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 809, 860, 1618, 1720, 3236, 4045, 6472, 8090, 16180, 32360, 34787, 69574, 139148, 173935, 278296, 347870, 695740, 1391480]

約数ペア:

[(1, 1391480), (2, 695740), (4, 347870), (5, 278296), (8, 173935), (10, 139148), (20, 69574), (40, 34787), (43, 32360), (86, 16180), (172, 8090), (215, 6472), (344, 4045), (430, 3236), (809, 1720), (860, 1618)]