2082220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{139}}^1$

素因数の和:262

約数の個数: 48

約数和(自身を含む): 5080320

約数和(自身を除く): 2998100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 107, 139, 140, 214, 278, 428, 535, 556, 695, 749, 973, 1070, 1390, 1498, 1946, 2140, 2780, 2996, 3745, 3892, 4865, 7490, 9730, 14873, 14980, 19460, 29746, 59492, 74365, 104111, 148730, 208222, 297460, 416444, 520555, 1041110, 2082220]

約数ペア:

[(1, 2082220), (2, 1041110), (4, 520555), (5, 416444), (7, 297460), (10, 208222), (14, 148730), (20, 104111), (28, 74365), (35, 59492), (70, 29746), (107, 19460), (139, 14980), (140, 14873), (214, 9730), (278, 7490), (428, 4865), (535, 3892), (556, 3745), (695, 2996), (749, 2780), (973, 2140), (1070, 1946), (1390, 1498)]