84080120

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{8179}}^1$

素因数の和:8447

約数の個数: 32

約数和(自身を含む): 189939600

約数和(自身を除く): 105859480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 5140, 8179, 10280, 16358, 32716, 40895, 65432, 81790, 163580, 327160, 2102003, 4204006, 8408012, 10510015, 16816024, 21020030, 42040060, 84080120]

約数ペア:

[(1, 84080120), (2, 42040060), (4, 21020030), (5, 16816024), (8, 10510015), (10, 8408012), (20, 4204006), (40, 2102003), (257, 327160), (514, 163580), (1028, 81790), (1285, 65432), (2056, 40895), (2570, 32716), (5140, 16358), (8179, 10280)]