30338140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1559}}^1$

素因数の和:1714

約数の個数: 48

約数和(自身を含む): 73382400

約数和(自身を除く): 43044260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 973, 1390, 1559, 1946, 2780, 3118, 3892, 4865, 6236, 7795, 9730, 10913, 15590, 19460, 21826, 31180, 43652, 54565, 109130, 216701, 218260, 433402, 866804, 1083505, 1516907, 2167010, 3033814, 4334020, 6067628, 7584535, 15169070, 30338140]

約数ペア:

[(1, 30338140), (2, 15169070), (4, 7584535), (5, 6067628), (7, 4334020), (10, 3033814), (14, 2167010), (20, 1516907), (28, 1083505), (35, 866804), (70, 433402), (139, 218260), (140, 216701), (278, 109130), (556, 54565), (695, 43652), (973, 31180), (1390, 21826), (1559, 19460), (1946, 15590), (2780, 10913), (3118, 9730), (3892, 7795), (4865, 6236)]