15681540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{37337}}^1$

素因数の和:37356

約数の個数: 48

約数和(自身を含む): 50182272

約数和(自身を除く): 34500732

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 37337, 74674, 112011, 149348, 186685, 224022, 261359, 373370, 448044, 522718, 560055, 746740, 784077, 1045436, 1120110, 1306795, 1568154, 2240220, 2613590, 3136308, 3920385, 5227180, 7840770, 15681540]

約数ペア:

[(1, 15681540), (2, 7840770), (3, 5227180), (4, 3920385), (5, 3136308), (6, 2613590), (7, 2240220), (10, 1568154), (12, 1306795), (14, 1120110), (15, 1045436), (20, 784077), (21, 746740), (28, 560055), (30, 522718), (35, 448044), (42, 373370), (60, 261359), (70, 224022), (84, 186685), (105, 149348), (140, 112011), (210, 74674), (420, 37337)]