2181540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{353}}^1$

素因数の和:468

約数の個数: 48

約数和(自身を含む): 6185088

約数和(自身を除く): 4003548

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 103, 206, 309, 353, 412, 515, 618, 706, 1030, 1059, 1236, 1412, 1545, 1765, 2060, 2118, 3090, 3530, 4236, 5295, 6180, 7060, 10590, 21180, 36359, 72718, 109077, 145436, 181795, 218154, 363590, 436308, 545385, 727180, 1090770, 2181540]

約数ペア:

[(1, 2181540), (2, 1090770), (3, 727180), (4, 545385), (5, 436308), (6, 363590), (10, 218154), (12, 181795), (15, 145436), (20, 109077), (30, 72718), (60, 36359), (103, 21180), (206, 10590), (309, 7060), (353, 6180), (412, 5295), (515, 4236), (618, 3530), (706, 3090), (1030, 2118), (1059, 2060), (1236, 1765), (1412, 1545)]