20816068420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1669}}^1\times {\mathrm{89087}}^1$

素因数の和:90772

約数の個数: 48

約数和(自身を含む): 49989058560

約数和(自身を除く): 29172990140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1669, 3338, 6676, 8345, 11683, 16690, 23366, 33380, 46732, 58415, 89087, 116830, 178174, 233660, 356348, 445435, 623609, 890870, 1247218, 1781740, 2494436, 3118045, 6236090, 12472180, 148686203, 297372406, 594744812, 743431015, 1040803421, 1486862030, 2081606842, 2973724060, 4163213684, 5204017105, 10408034210, 20816068420]

約数ペア:

[(1, 20816068420), (2, 10408034210), (4, 5204017105), (5, 4163213684), (7, 2973724060), (10, 2081606842), (14, 1486862030), (20, 1040803421), (28, 743431015), (35, 594744812), (70, 297372406), (140, 148686203), (1669, 12472180), (3338, 6236090), (6676, 3118045), (8345, 2494436), (11683, 1781740), (16690, 1247218), (23366, 890870), (33380, 623609), (46732, 445435), (58415, 356348), (89087, 233660), (116830, 178174)]