221693580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1231631}}^1$

素因数の和:1231646

約数の個数: 36

約数和(自身を含む): 672471072

約数和(自身を除く): 450777492

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1231631, 2463262, 3694893, 4926524, 6158155, 7389786, 11084679, 12316310, 14779572, 18474465, 22169358, 24632620, 36948930, 44338716, 55423395, 73897860, 110846790, 221693580]

約数ペア:

[(1, 221693580), (2, 110846790), (3, 73897860), (4, 55423395), (5, 44338716), (6, 36948930), (9, 24632620), (10, 22169358), (12, 18474465), (15, 14779572), (18, 12316310), (20, 11084679), (30, 7389786), (36, 6158155), (45, 4926524), (60, 3694893), (90, 2463262), (180, 1231631)]