80346780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{349}}^1\times {\mathrm{1279}}^1$

素因数の和:1643

約数の個数: 72

約数和(自身を含む): 244608000

約数和(自身を除く): 164261220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 349, 698, 1047, 1279, 1396, 1745, 2094, 2558, 3141, 3490, 3837, 4188, 5116, 5235, 6282, 6395, 6980, 7674, 10470, 11511, 12564, 12790, 15348, 15705, 19185, 20940, 23022, 25580, 31410, 38370, 46044, 57555, 62820, 76740, 115110, 230220, 446371, 892742, 1339113, 1785484, 2231855, 2678226, 4017339, 4463710, 5356452, 6695565, 8034678, 8927420, 13391130, 16069356, 20086695, 26782260, 40173390, 80346780]

約数ペア:

[(1, 80346780), (2, 40173390), (3, 26782260), (4, 20086695), (5, 16069356), (6, 13391130), (9, 8927420), (10, 8034678), (12, 6695565), (15, 5356452), (18, 4463710), (20, 4017339), (30, 2678226), (36, 2231855), (45, 1785484), (60, 1339113), (90, 892742), (180, 446371), (349, 230220), (698, 115110), (1047, 76740), (1279, 62820), (1396, 57555), (1745, 46044), (2094, 38370), (2558, 31410), (3141, 25580), (3490, 23022), (3837, 20940), (4188, 19185), (5116, 15705), (5235, 15348), (6282, 12790), (6395, 12564), (6980, 11511), (7674, 10470)]