199951340

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{78721}}^1$

素因数の和:78857

約数の個数: 24

約数和(自身を含む): 423209472

約数和(自身を除く): 223258132

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 508, 635, 1270, 2540, 78721, 157442, 314884, 393605, 787210, 1574420, 9997567, 19995134, 39990268, 49987835, 99975670, 199951340]

約数ペア:

[(1, 199951340), (2, 99975670), (4, 49987835), (5, 39990268), (10, 19995134), (20, 9997567), (127, 1574420), (254, 787210), (508, 393605), (635, 314884), (1270, 157442), (2540, 78721)]