240672020

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{135209}}^1$

素因数の和:135307

約数の個数: 24

約数和(自身を含む): 511093800

約数和(自身を除く): 270421780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 135209, 270418, 540836, 676045, 1352090, 2704180, 12033601, 24067202, 48134404, 60168005, 120336010, 240672020]

約数ペア:

[(1, 240672020), (2, 120336010), (4, 60168005), (5, 48134404), (10, 24067202), (20, 12033601), (89, 2704180), (178, 1352090), (356, 676045), (445, 540836), (890, 270418), (1780, 135209)]