1921000240

素因数分解:

$2^4\times 5^1\times {\mathrm{24012503}}^1$

素因数の和:24012516

約数の個数: 20

約数和(自身を含む): 4466325744

約数和(自身を除く): 2545325504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 24012503, 48025006, 96050012, 120062515, 192100024, 240125030, 384200048, 480250060, 960500120, 1921000240]

約数ペア:

[(1, 1921000240), (2, 960500120), (4, 480250060), (5, 384200048), (8, 240125030), (10, 192100024), (16, 120062515), (20, 96050012), (40, 48025006), (80, 24012503)]