1811580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{277}}^1$

素因数の和:398

約数の個数: 48

約数和(自身を含む): 5137440

約数和(自身を除く): 3325860

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 109, 218, 277, 327, 436, 545, 554, 654, 831, 1090, 1108, 1308, 1385, 1635, 1662, 2180, 2770, 3270, 3324, 4155, 5540, 6540, 8310, 16620, 30193, 60386, 90579, 120772, 150965, 181158, 301930, 362316, 452895, 603860, 905790, 1811580]

約数ペア:

[(1, 1811580), (2, 905790), (3, 603860), (4, 452895), (5, 362316), (6, 301930), (10, 181158), (12, 150965), (15, 120772), (20, 90579), (30, 60386), (60, 30193), (109, 16620), (218, 8310), (277, 6540), (327, 5540), (436, 4155), (545, 3324), (554, 3270), (654, 2770), (831, 2180), (1090, 1662), (1108, 1635), (1308, 1385)]