129772580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{132421}}^1$

素因数の和:132444

約数の個数: 36

約数和(自身を含む): 317018268

約数和(自身を除く): 187245688

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 132421, 264842, 529684, 662105, 926947, 1324210, 1853894, 2648420, 3707788, 4634735, 6488629, 9269470, 12977258, 18538940, 25954516, 32443145, 64886290, 129772580]

約数ペア:

[(1, 129772580), (2, 64886290), (4, 32443145), (5, 25954516), (7, 18538940), (10, 12977258), (14, 9269470), (20, 6488629), (28, 4634735), (35, 3707788), (49, 2648420), (70, 1853894), (98, 1324210), (140, 926947), (196, 662105), (245, 529684), (490, 264842), (980, 132421)]