28035420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{66751}}^1$

素因数の和:66770

約数の個数: 48

約数和(自身を含む): 89714688

約数和(自身を除く): 61679268

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, 66751, 133502, 200253, 267004, 333755, 400506, 467257, 667510, 801012, 934514, 1001265, 1335020, 1401771, 1869028, 2002530, 2336285, 2803542, 4005060, 4672570, 5607084, 7008855, 9345140, 14017710, 28035420]

約数ペア:

[(1, 28035420), (2, 14017710), (3, 9345140), (4, 7008855), (5, 5607084), (6, 4672570), (7, 4005060), (10, 2803542), (12, 2336285), (14, 2002530), (15, 1869028), (20, 1401771), (21, 1335020), (28, 1001265), (30, 934514), (35, 801012), (42, 667510), (60, 467257), (70, 400506), (84, 333755), (105, 267004), (140, 200253), (210, 133502), (420, 66751)]