285918780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{680759}}^1$

素因数の和:680778

約数の個数: 48

約数和(自身を含む): 914941440

約数和(自身を除く): 629022660

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, 680759, 1361518, 2042277, 2723036, 3403795, 4084554, 4765313, 6807590, 8169108, 9530626, 10211385, 13615180, 14295939, 19061252, 20422770, 23826565, 28591878, 40845540, 47653130, 57183756, 71479695, 95306260, 142959390, 285918780]

約数ペア:

[(1, 285918780), (2, 142959390), (3, 95306260), (4, 71479695), (5, 57183756), (6, 47653130), (7, 40845540), (10, 28591878), (12, 23826565), (14, 20422770), (15, 19061252), (20, 14295939), (21, 13615180), (28, 10211385), (30, 9530626), (35, 8169108), (42, 6807590), (60, 4765313), (70, 4084554), (84, 3403795), (105, 2723036), (140, 2042277), (210, 1361518), (420, 680759)]