54720940

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{63629}}^1$

素因数の和:63681

約数の個数: 24

約数和(自身を含む): 117588240

約数和(自身を除く): 62867300

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 63629, 127258, 254516, 318145, 636290, 1272580, 2736047, 5472094, 10944188, 13680235, 27360470, 54720940]

約数ペア:

[(1, 54720940), (2, 27360470), (4, 13680235), (5, 10944188), (10, 5472094), (20, 2736047), (43, 1272580), (86, 636290), (172, 318145), (215, 254516), (430, 127258), (860, 63629)]