157706320

素因数分解:

$2^4\times 5^1\times {\mathrm{1971329}}^1$

素因数の和:1971342

約数の個数: 20

約数和(自身を含む): 366667380

約数和(自身を除く): 208961060

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1971329, 3942658, 7885316, 9856645, 15770632, 19713290, 31541264, 39426580, 78853160, 157706320]

約数ペア:

[(1, 157706320), (2, 78853160), (4, 39426580), (5, 31541264), (8, 19713290), (10, 15770632), (16, 9856645), (20, 7885316), (40, 3942658), (80, 1971329)]