2802940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{20021}}^1$

素因数の和:20037

約数の個数: 24

約数和(自身を含む): 6727392

約数和(自身を除く): 3924452

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 20021, 40042, 80084, 100105, 140147, 200210, 280294, 400420, 560588, 700735, 1401470, 2802940]

約数ペア:

[(1, 2802940), (2, 1401470), (4, 700735), (5, 560588), (7, 400420), (10, 280294), (14, 200210), (20, 140147), (28, 100105), (35, 80084), (70, 40042), (140, 20021)]