18520240

素因数分解:

$2^4\times 5^1\times {\mathrm{231503}}^1$

素因数の和:231516

約数の個数: 20

約数和(自身を含む): 43059744

約数和(自身を除く): 24539504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 231503, 463006, 926012, 1157515, 1852024, 2315030, 3704048, 4630060, 9260120, 18520240]

約数ペア:

[(1, 18520240), (2, 9260120), (4, 4630060), (5, 3704048), (8, 2315030), (10, 1852024), (16, 1157515), (20, 926012), (40, 463006), (80, 231503)]