920240

素因数分解:

$2^4\times 5^1\times {\mathrm{11503}}^1$

素因数の和:11516

約数の個数: 20

約数和(自身を含む): 2139744

約数和(自身を除く): 1219504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 11503, 23006, 46012, 57515, 92024, 115030, 184048, 230060, 460120, 920240]

約数ペア:

[(1, 920240), (2, 460120), (4, 230060), (5, 184048), (8, 115030), (10, 92024), (16, 57515), (20, 46012), (40, 23006), (80, 11503)]