81537788

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{7547}}^1$

素因数の和:7661

約数の個数: 24

約数和(自身を含む): 148574832

約数和(自身を除く): 67037044

約数列:

[1, 2, 4, 37, 73, 74, 146, 148, 292, 2701, 5402, 7547, 10804, 15094, 30188, 279239, 550931, 558478, 1101862, 1116956, 2203724, 20384447, 40768894, 81537788]

約数ペア:

[(1, 81537788), (2, 40768894), (4, 20384447), (37, 2203724), (73, 1116956), (74, 1101862), (146, 558478), (148, 550931), (292, 279239), (2701, 30188), (5402, 15094), (7547, 10804)]