81638604

素因数分解:

$2^2\times 3^4\times {\mathrm{251971}}^1$

素因数の和:251987

約数の個数: 30

約数和(自身を含む): 213420284

約数和(自身を除く): 131781680

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324, 251971, 503942, 755913, 1007884, 1511826, 2267739, 3023652, 4535478, 6803217, 9070956, 13606434, 20409651, 27212868, 40819302, 81638604]

約数ペア:

[(1, 81638604), (2, 40819302), (3, 27212868), (4, 20409651), (6, 13606434), (9, 9070956), (12, 6803217), (18, 4535478), (27, 3023652), (36, 2267739), (54, 1511826), (81, 1007884), (108, 755913), (162, 503942), (324, 251971)]