15405880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{55021}}^1$

素因数の和:55039

約数の個数: 32

約数和(自身を含む): 39615840

約数和(自身を除く): 24209960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 55021, 110042, 220084, 275105, 385147, 440168, 550210, 770294, 1100420, 1540588, 1925735, 2200840, 3081176, 3851470, 7702940, 15405880]

約数ペア:

[(1, 15405880), (2, 7702940), (4, 3851470), (5, 3081176), (7, 2200840), (8, 1925735), (10, 1540588), (14, 1100420), (20, 770294), (28, 550210), (35, 440168), (40, 385147), (56, 275105), (70, 220084), (140, 110042), (280, 55021)]