30438940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{217421}}^1$

素因数の和:217437

約数の個数: 24

約数和(自身を含む): 73053792

約数和(自身を除く): 42614852

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 217421, 434842, 869684, 1087105, 1521947, 2174210, 3043894, 4348420, 6087788, 7609735, 15219470, 30438940]

約数ペア:

[(1, 30438940), (2, 15219470), (4, 7609735), (5, 6087788), (7, 4348420), (10, 3043894), (14, 2174210), (20, 1521947), (28, 1087105), (35, 869684), (70, 434842), (140, 217421)]