81637956

素因数分解:

$2^2\times 3^4\times {\mathrm{251969}}^1$

素因数の和:251985

約数の個数: 30

約数和(自身を含む): 213418590

約数和(自身を除く): 131780634

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324, 251969, 503938, 755907, 1007876, 1511814, 2267721, 3023628, 4535442, 6803163, 9070884, 13606326, 20409489, 27212652, 40818978, 81637956]

約数ペア:

[(1, 81637956), (2, 40818978), (3, 27212652), (4, 20409489), (6, 13606326), (9, 9070884), (12, 6803163), (18, 4535442), (27, 3023628), (36, 2267721), (54, 1511814), (81, 1007876), (108, 755907), (162, 503938), (324, 251969)]