161206.0000000

素因数分解:

$2^4\times 5^1\times {\mathrm{179}}^1\times {\mathrm{509}}^1$

素因数の和:701

約数の個数: 40

約数和(自身を含む): 17074800

約数和(自身を除く): 9785920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 179, 358, 509, 716, 895, 1018, 1432, 1790, 2036, 2545, 2864, 3580, 4072, 5090, 7160, 8144, 10180, 14320, 20360, 40720, 91111, 182222, 364444, 455555, 728888, 911110, 1457776, 1822220, 3644440, 7288880]

約数ペア:

[(1, 7288880), (2, 3644440), (4, 1822220), (5, 1457776), (8, 911110), (10, 728888), (16, 455555), (20, 364444), (40, 182222), (80, 91111), (179, 40720), (358, 20360), (509, 14320), (716, 10180), (895, 8144), (1018, 7160), (1432, 5090), (1790, 4072), (2036, 3580), (2545, 2864)]