18915180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{367}}^1\times {\mathrm{859}}^1$

素因数の和:1238

約数の個数: 48

約数和(自身を含む): 53168640

約数和(自身を除く): 34253460

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 367, 734, 859, 1101, 1468, 1718, 1835, 2202, 2577, 3436, 3670, 4295, 4404, 5154, 5505, 7340, 8590, 10308, 11010, 12885, 17180, 22020, 25770, 51540, 315253, 630506, 945759, 1261012, 1576265, 1891518, 3152530, 3783036, 4728795, 6305060, 9457590, 18915180]

約数ペア:

[(1, 18915180), (2, 9457590), (3, 6305060), (4, 4728795), (5, 3783036), (6, 3152530), (10, 1891518), (12, 1576265), (15, 1261012), (20, 945759), (30, 630506), (60, 315253), (367, 51540), (734, 25770), (859, 22020), (1101, 17180), (1468, 12885), (1718, 11010), (1835, 10308), (2202, 8590), (2577, 7340), (3436, 5505), (3670, 5154), (4295, 4404)]