131211180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{4643}}^1$

素因数の和:4815

約数の個数: 72

約数和(自身を含む): 400628592

約数和(自身を除く): 269417412

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 157, 180, 314, 471, 628, 785, 942, 1413, 1570, 1884, 2355, 2826, 3140, 4643, 4710, 5652, 7065, 9286, 9420, 13929, 14130, 18572, 23215, 27858, 28260, 41787, 46430, 55716, 69645, 83574, 92860, 139290, 167148, 208935, 278580, 417870, 728951, 835740, 1457902, 2186853, 2915804, 3644755, 4373706, 6560559, 7289510, 8747412, 10934265, 13121118, 14579020, 21868530, 26242236, 32802795, 43737060, 65605590, 131211180]

約数ペア:

[(1, 131211180), (2, 65605590), (3, 43737060), (4, 32802795), (5, 26242236), (6, 21868530), (9, 14579020), (10, 13121118), (12, 10934265), (15, 8747412), (18, 7289510), (20, 6560559), (30, 4373706), (36, 3644755), (45, 2915804), (60, 2186853), (90, 1457902), (157, 835740), (180, 728951), (314, 417870), (471, 278580), (628, 208935), (785, 167148), (942, 139290), (1413, 92860), (1570, 83574), (1884, 69645), (2355, 55716), (2826, 46430), (3140, 41787), (4643, 28260), (4710, 27858), (5652, 23215), (7065, 18572), (9286, 14130), (9420, 13929)]