18171180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{643}}^1$

素因数の和:815

約数の個数: 72

約数和(自身を含む): 55556592

約数和(自身を除く): 37385412

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, 643, 785, 942, 1286, 1413, 1570, 1884, 1929, 2355, 2572, 2826, 3140, 3215, 3858, 4710, 5652, 5787, 6430, 7065, 7716, 9420, 9645, 11574, 12860, 14130, 19290, 23148, 28260, 28935, 38580, 57870, 100951, 115740, 201902, 302853, 403804, 504755, 605706, 908559, 1009510, 1211412, 1514265, 1817118, 2019020, 3028530, 3634236, 4542795, 6057060, 9085590, 18171180]

約数ペア:

[(1, 18171180), (2, 9085590), (3, 6057060), (4, 4542795), (5, 3634236), (6, 3028530), (9, 2019020), (10, 1817118), (12, 1514265), (15, 1211412), (18, 1009510), (20, 908559), (30, 605706), (36, 504755), (45, 403804), (60, 302853), (90, 201902), (157, 115740), (180, 100951), (314, 57870), (471, 38580), (628, 28935), (643, 28260), (785, 23148), (942, 19290), (1286, 14130), (1413, 12860), (1570, 11574), (1884, 9645), (1929, 9420), (2355, 7716), (2572, 7065), (2826, 6430), (3140, 5787), (3215, 5652), (3858, 4710)]