42870380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{2203}}^1$

素因数の和:2358

約数の個数: 48

約数和(自身を含む): 103676160

約数和(自身を除く): 60805780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 973, 1390, 1946, 2203, 2780, 3892, 4406, 4865, 8812, 9730, 11015, 15421, 19460, 22030, 30842, 44060, 61684, 77105, 154210, 306217, 308420, 612434, 1224868, 1531085, 2143519, 3062170, 4287038, 6124340, 8574076, 10717595, 21435190, 42870380]

約数ペア:

[(1, 42870380), (2, 21435190), (4, 10717595), (5, 8574076), (7, 6124340), (10, 4287038), (14, 3062170), (20, 2143519), (28, 1531085), (35, 1224868), (70, 612434), (139, 308420), (140, 306217), (278, 154210), (556, 77105), (695, 61684), (973, 44060), (1390, 30842), (1946, 22030), (2203, 19460), (2780, 15421), (3892, 11015), (4406, 9730), (4865, 8812)]