81813874

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1$

素因数の和:334

約数の個数: 32

約数和(自身を含む): 129230640

約数和(自身を除く): 47416766

約数列:

[1, 2, 53, 73, 97, 106, 109, 146, 194, 218, 3869, 5141, 5777, 7081, 7738, 7957, 10282, 10573, 11554, 14162, 15914, 21146, 375293, 421721, 560369, 750586, 771829, 843442, 1120738, 1543658, 40906937, 81813874]

約数ペア:

[(1, 81813874), (2, 40906937), (53, 1543658), (73, 1120738), (97, 843442), (106, 771829), (109, 750586), (146, 560369), (194, 421721), (218, 375293), (3869, 21146), (5141, 15914), (5777, 14162), (7081, 11554), (7738, 10573), (7957, 10282)]