618940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{4421}}^1$

素因数の和:4437

約数の個数: 24

約数和(自身を含む): 1485792

約数和(自身を除く): 866852

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 4421, 8842, 17684, 22105, 30947, 44210, 61894, 88420, 123788, 154735, 309470, 618940]

約数ペア:

[(1, 618940), (2, 309470), (4, 154735), (5, 123788), (7, 88420), (10, 61894), (14, 44210), (20, 30947), (28, 22105), (35, 17684), (70, 8842), (140, 4421)]