127878940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{913421}}^1$

素因数の和:913437

約数の個数: 24

約数和(自身を含む): 306909792

約数和(自身を除く): 179030852

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 913421, 1826842, 3653684, 4567105, 6393947, 9134210, 12787894, 18268420, 25575788, 31969735, 63939470, 127878940]

約数ペア:

[(1, 127878940), (2, 63939470), (4, 31969735), (5, 25575788), (7, 18268420), (10, 12787894), (14, 9134210), (20, 6393947), (28, 4567105), (35, 3653684), (70, 1826842), (140, 913421)]