123921540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{688453}}^1$

素因数の和:688468

約数の個数: 36

約数和(自身を含む): 375895884

約数和(自身を除く): 251974344

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 688453, 1376906, 2065359, 2753812, 3442265, 4130718, 6196077, 6884530, 8261436, 10326795, 12392154, 13769060, 20653590, 24784308, 30980385, 41307180, 61960770, 123921540]

約数ペア:

[(1, 123921540), (2, 61960770), (3, 41307180), (4, 30980385), (5, 24784308), (6, 20653590), (9, 13769060), (10, 12392154), (12, 10326795), (15, 8261436), (18, 6884530), (20, 6196077), (30, 4130718), (36, 3442265), (45, 2753812), (60, 2065359), (90, 1376906), (180, 688453)]