22400120

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{2179}}^1$

素因数の和:2447

約数の個数: 32

約数和(自身を含む): 50619600

約数和(自身を除く): 28219480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2179, 2570, 4358, 5140, 8716, 10280, 10895, 17432, 21790, 43580, 87160, 560003, 1120006, 2240012, 2800015, 4480024, 5600030, 11200060, 22400120]

約数ペア:

[(1, 22400120), (2, 11200060), (4, 5600030), (5, 4480024), (8, 2800015), (10, 2240012), (20, 1120006), (40, 560003), (257, 87160), (514, 43580), (1028, 21790), (1285, 17432), (2056, 10895), (2179, 10280), (2570, 8716), (4358, 5140)]