19406560

素因数分解:

$2^5\times 5^1\times {\mathrm{121291}}^1$

素因数の和:121306

約数の個数: 24

約数和(自身を含む): 45848376

約数和(自身を除く): 26441816

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 121291, 242582, 485164, 606455, 970328, 1212910, 1940656, 2425820, 3881312, 4851640, 9703280, 19406560]

約数ペア:

[(1, 19406560), (2, 9703280), (4, 4851640), (5, 3881312), (8, 2425820), (10, 1940656), (16, 1212910), (20, 970328), (32, 606455), (40, 485164), (80, 242582), (160, 121291)]