636778940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{4548421}}^1$

素因数の和:4548437

約数の個数: 24

約数和(自身を含む): 1528269792

約数和(自身を除く): 891490852

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 4548421, 9096842, 18193684, 22742105, 31838947, 45484210, 63677894, 90968420, 127355788, 159194735, 318389470, 636778940]

約数ペア:

[(1, 636778940), (2, 318389470), (4, 159194735), (5, 127355788), (7, 90968420), (10, 63677894), (14, 45484210), (20, 31838947), (28, 22742105), (35, 18193684), (70, 9096842), (140, 4548421)]