208068420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{495401}}^1$

素因数の和:495420

約数の個数: 48

約数和(自身を含む): 665820288

約数和(自身を除く): 457751868

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, 495401, 990802, 1486203, 1981604, 2477005, 2972406, 3467807, 4954010, 5944812, 6935614, 7431015, 9908020, 10403421, 13871228, 14862030, 17339035, 20806842, 29724060, 34678070, 41613684, 52017105, 69356140, 104034210, 208068420]

約数ペア:

[(1, 208068420), (2, 104034210), (3, 69356140), (4, 52017105), (5, 41613684), (6, 34678070), (7, 29724060), (10, 20806842), (12, 17339035), (14, 14862030), (15, 13871228), (20, 10403421), (21, 9908020), (28, 7431015), (30, 6935614), (35, 5944812), (42, 4954010), (60, 3467807), (70, 2972406), (84, 2477005), (105, 1981604), (140, 1486203), (210, 990802), (420, 495401)]