428156690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{9437}}^1$

素因数の和:9806

約数の個数: 32

約数和(自身を含む): 832431600

約数和(自身を除く): 404274910

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 349, 698, 1745, 3490, 4537, 9074, 9437, 18874, 22685, 45370, 47185, 94370, 122681, 245362, 613405, 1226810, 3293513, 6587026, 16467565, 32935130, 42815669, 85631338, 214078345, 428156690]

約数ペア:

[(1, 428156690), (2, 214078345), (5, 85631338), (10, 42815669), (13, 32935130), (26, 16467565), (65, 6587026), (130, 3293513), (349, 1226810), (698, 613405), (1745, 245362), (3490, 122681), (4537, 94370), (9074, 47185), (9437, 45370), (18874, 22685)]