1878940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13421}}^1$

素因数の和:13437

約数の個数: 24

約数和(自身を含む): 4509792

約数和(自身を除く): 2630852

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 13421, 26842, 53684, 67105, 93947, 134210, 187894, 268420, 375788, 469735, 939470, 1878940]

約数ペア:

[(1, 1878940), (2, 939470), (4, 469735), (5, 375788), (7, 268420), (10, 187894), (14, 134210), (20, 93947), (28, 67105), (35, 53684), (70, 26842), (140, 13421)]