12984080

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1489}}^1$

素因数の和:1611

約数の個数: 40

約数和(自身を含む): 30485400

約数和(自身を除く): 17501320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1489, 1744, 2180, 2978, 4360, 5956, 7445, 8720, 11912, 14890, 23824, 29780, 59560, 119120, 162301, 324602, 649204, 811505, 1298408, 1623010, 2596816, 3246020, 6492040, 12984080]

約数ペア:

[(1, 12984080), (2, 6492040), (4, 3246020), (5, 2596816), (8, 1623010), (10, 1298408), (16, 811505), (20, 649204), (40, 324602), (80, 162301), (109, 119120), (218, 59560), (436, 29780), (545, 23824), (872, 14890), (1090, 11912), (1489, 8720), (1744, 7445), (2180, 5956), (2978, 4360)]