28325640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{33721}}^1$

素因数の和:33742

約数の個数: 64

約数和(自身を含む): 97119360

約数和(自身を除く): 68793720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 33721, 67442, 101163, 134884, 168605, 202326, 236047, 269768, 337210, 404652, 472094, 505815, 674420, 708141, 809304, 944188, 1011630, 1180235, 1348840, 1416282, 1888376, 2023260, 2360470, 2832564, 3540705, 4046520, 4720940, 5665128, 7081410, 9441880, 14162820, 28325640]

約数ペア:

[(1, 28325640), (2, 14162820), (3, 9441880), (4, 7081410), (5, 5665128), (6, 4720940), (7, 4046520), (8, 3540705), (10, 2832564), (12, 2360470), (14, 2023260), (15, 1888376), (20, 1416282), (21, 1348840), (24, 1180235), (28, 1011630), (30, 944188), (35, 809304), (40, 708141), (42, 674420), (56, 505815), (60, 472094), (70, 404652), (84, 337210), (105, 269768), (120, 236047), (140, 202326), (168, 168605), (210, 134884), (280, 101163), (420, 67442), (840, 33721)]