20758620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{3359}}^1$

素因数の和:3474

約数の個数: 48

約数和(自身を含む): 58705920

約数和(自身を除く): 37947300

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 103, 206, 309, 412, 515, 618, 1030, 1236, 1545, 2060, 3090, 3359, 6180, 6718, 10077, 13436, 16795, 20154, 33590, 40308, 50385, 67180, 100770, 201540, 345977, 691954, 1037931, 1383908, 1729885, 2075862, 3459770, 4151724, 5189655, 6919540, 10379310, 20758620]

約数ペア:

[(1, 20758620), (2, 10379310), (3, 6919540), (4, 5189655), (5, 4151724), (6, 3459770), (10, 2075862), (12, 1729885), (15, 1383908), (20, 1037931), (30, 691954), (60, 345977), (103, 201540), (206, 100770), (309, 67180), (412, 50385), (515, 40308), (618, 33590), (1030, 20154), (1236, 16795), (1545, 13436), (2060, 10077), (3090, 6718), (3359, 6180)]