20800182

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{73}}^1\times {\mathrm{281}}^1$

素因数の和:385

約数の個数: 48

約数和(自身を含む): 45826128

約数和(自身を除く): 25025946

約数列:

[1, 2, 3, 6, 13, 26, 39, 73, 78, 146, 169, 219, 281, 338, 438, 507, 562, 843, 949, 1014, 1686, 1898, 2847, 3653, 5694, 7306, 10959, 12337, 20513, 21918, 24674, 37011, 41026, 47489, 61539, 74022, 94978, 123078, 142467, 266669, 284934, 533338, 800007, 1600014, 3466697, 6933394, 10400091, 20800182]

約数ペア:

[(1, 20800182), (2, 10400091), (3, 6933394), (6, 3466697), (13, 1600014), (26, 800007), (39, 533338), (73, 284934), (78, 266669), (146, 142467), (169, 123078), (219, 94978), (281, 74022), (338, 61539), (438, 47489), (507, 41026), (562, 37011), (843, 24674), (949, 21918), (1014, 20513), (1686, 12337), (1898, 10959), (2847, 7306), (3653, 5694)]