18091980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{100511}}^1$

素因数の和:100526

約数の個数: 36

約数和(自身を含む): 54879552

約数和(自身を除く): 36787572

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 100511, 201022, 301533, 402044, 502555, 603066, 904599, 1005110, 1206132, 1507665, 1809198, 2010220, 3015330, 3618396, 4522995, 6030660, 9045990, 18091980]

約数ペア:

[(1, 18091980), (2, 9045990), (3, 6030660), (4, 4522995), (5, 3618396), (6, 3015330), (9, 2010220), (10, 1809198), (12, 1507665), (15, 1206132), (18, 1005110), (20, 904599), (30, 603066), (36, 502555), (45, 402044), (60, 301533), (90, 201022), (180, 100511)]