198464560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{354401}}^1$

素因数の和:354421

約数の個数: 40

約数和(自身を含む): 527350176

約数和(自身を除く): 328885616

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 354401, 708802, 1417604, 1772005, 2480807, 2835208, 3544010, 4961614, 5670416, 7088020, 9923228, 12404035, 14176040, 19846456, 24808070, 28352080, 39692912, 49616140, 99232280, 198464560]

約数ペア:

[(1, 198464560), (2, 99232280), (4, 49616140), (5, 39692912), (7, 28352080), (8, 24808070), (10, 19846456), (14, 14176040), (16, 12404035), (20, 9923228), (28, 7088020), (35, 5670416), (40, 4961614), (56, 3544010), (70, 2835208), (80, 2480807), (112, 1772005), (140, 1417604), (280, 708802), (560, 354401)]