19108120

素因数分解:

$2^3\times 5^1\times {\mathrm{541}}^1\times {\mathrm{883}}^1$

素因数の和:1435

約数の個数: 32

約数和(自身を含む): 43121520

約数和(自身を除く): 24013400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 541, 883, 1082, 1766, 2164, 2705, 3532, 4328, 4415, 5410, 7064, 8830, 10820, 17660, 21640, 35320, 477703, 955406, 1910812, 2388515, 3821624, 4777030, 9554060, 19108120]

約数ペア:

[(1, 19108120), (2, 9554060), (4, 4777030), (5, 3821624), (8, 2388515), (10, 1910812), (20, 955406), (40, 477703), (541, 35320), (883, 21640), (1082, 17660), (1766, 10820), (2164, 8830), (2705, 7064), (3532, 5410), (4328, 4415)]