161990600

素因数分解:

$2^3\times 5^2\times {\mathrm{139}}^1\times {\mathrm{5827}}^1$

素因数の和:5982

約数の個数: 48

約数和(自身を含む): 379402800

約数和(自身を除く): 217412200

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 139, 200, 278, 556, 695, 1112, 1390, 2780, 3475, 5560, 5827, 6950, 11654, 13900, 23308, 27800, 29135, 46616, 58270, 116540, 145675, 233080, 291350, 582700, 809953, 1165400, 1619906, 3239812, 4049765, 6479624, 8099530, 16199060, 20248825, 32398120, 40497650, 80995300, 161990600]

約数ペア:

[(1, 161990600), (2, 80995300), (4, 40497650), (5, 32398120), (8, 20248825), (10, 16199060), (20, 8099530), (25, 6479624), (40, 4049765), (50, 3239812), (100, 1619906), (139, 1165400), (200, 809953), (278, 582700), (556, 291350), (695, 233080), (1112, 145675), (1390, 116540), (2780, 58270), (3475, 46616), (5560, 29135), (5827, 27800), (6950, 23308), (11654, 13900)]