291228420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{693401}}^1$

素因数の和:693420

約数の個数: 48

約数和(自身を含む): 931932288

約数和(自身を除く): 640703868

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, 693401, 1386802, 2080203, 2773604, 3467005, 4160406, 4853807, 6934010, 8320812, 9707614, 10401015, 13868020, 14561421, 19415228, 20802030, 24269035, 29122842, 41604060, 48538070, 58245684, 72807105, 97076140, 145614210, 291228420]

約数ペア:

[(1, 291228420), (2, 145614210), (3, 97076140), (4, 72807105), (5, 58245684), (6, 48538070), (7, 41604060), (10, 29122842), (12, 24269035), (14, 20802030), (15, 19415228), (20, 14561421), (21, 13868020), (28, 10401015), (30, 9707614), (35, 8320812), (42, 6934010), (60, 4853807), (70, 4160406), (84, 3467005), (105, 2773604), (140, 2080203), (210, 1386802), (420, 693401)]